1955-1957 Small Block Chevy Chassis Headers, AHC Coated

#930C7H

1955-1957 Small Block Chevy Chassis Headers, AHC Coated

Name: 1955-1957 Small Block Chevy Chassis Headers, AHC Coated
Brand: Speedway Motors
SKU: 930C7H
Price: 355.99 USD
Availability: BackOrder
Rating: 4.6 (17 reviews)

17 Reviews

12 Questions

Mid-length design offers maximum ground clearance
Designed to work with stock or 605 power steering box
Fits cars using an original V-8 pitman arm (some aftermarket arms may cause an interference)

Finish:

Silver Ceramic

Plain Stainless SteelChrome

$355.99

/set

On Backorder

This part is Backordered. We estimate this item will ship on or before February 14th.

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Product Summary

Chassis Header Tube Type, Oval Exhaust Port Shape

Mid-length design offers maximum ground clearance
Designed to work with stock or 605 power steering box
Fits cars using an original V-8 pitman arm (some aftermarket arms may cause an interference)
Will work with side engine mounts with engine in stock location
Armor Hot Coat® is a Speedway Motors custom ceramic heat proof coating that will keep the finish of these headers looking great for years to come

See more details

Key Specs

MFG. Part #	930C7H
Header Tube Type	Chassis
Exhaust Port Shape	Oval
Flange Style	Standard
Primary Tube Diameter	1-5/8"

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Need To Know

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855.313.9176

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Speedway Motors 930C7H Details

These Speedway headers allow you to keep the exhaust system under your '55-'57 Chevy car. The "3/4-length" design provides more ground clearance than full-length headers, yet makes more power than "shorty" style headers. These chassis headers fit 283-400 S/B Chevy V8s and has 1-5/8" primary tubes with 2-1/2" collectors. These ceramic coated headers provide superior performance and durability.

Mid-length design offers maximum ground clearance
Designed to work with stock or 605 power steering box
Fits cars using an original V-8 pitman arm (some aftermarket arms may cause an interference)
Will work with side engine mounts with engine in stock location
Fits standard and Vortec-style small-block Chevy heads (not D-port, LT-1 or ZZ-4)
Does not work with stock clutch linkage
(Please use the chart below to help with dimensions.) Drivers side A dimension is 3-1/2" up by the head and 5-5/8" at the collector, B dimension is 15", and C dimension is 21". Passenger side A dimension is 4" at the head and 6-5/8" at the collector, B is 15", and C is 21".

NOTE: These headers do not fit angle-plug heads. They do work with a "605"steering box. They work with most any bellhousing and most any motor mounts. Some aftermarket starters may be in the way. Designed to fit cars using an original V-8 pitman arm. Some aftermarket arms may cause an interference.

The use of a shorty spark plug may aide in clearance between the plug wire and header primary tubes.

Armor Hot Coat® (AHC) is a heat resistant, ceramic coating applied to the outside of the header. This coating will reflect heat, which helps retain more heat within the header tube while simultaneously speeding up the exhaust flow. Not only will this coating help you make more horsepower, it also keeps your headers rust-free, looking great, and lasting longer (when properly maintained). If you are looking for a show-quality finish for your headers, this is it! Our AHC will withstand exhaust temperatures of up to 1300® F. Armor Hot Coat® (AHC) is a heat resistant, ceramic coating applied to the outside of the header. This coating will reflect heat, which helps retain more heat within the header tube while simultaneously speeding up the exhaust flow. Not only will this coating help you make more horsepower, it also keeps your headers rust-free, looking great, and lasting longer (when properly maintained). If you are looking for a show-quality finish for your headers, this is it! Our AHC will withstand exhaust temperatures of up to 1300® F.

Charts

Header Dimension Chart (JPG)

Guides & Documents

Headers Sizing Chart (930C7H)

Warranty Information

AHC Warning: AHC coatings will burn and be damaged at exhaust temperatures over 1300 degrees. A lean fuel mixture can generate exhaust temperatures exceeding 1700-1900 degrees. If the coating is damaged due to a lean condition, the coating will not be warranted, but can be recoated for a fee.

Not legal for sale or use in California on pollution controlled vehicles

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Speedway Motors 930C7H Specifications

KEY SPECS
MFG. Part #	930C7H
Brand	Speedway Motors
Header Tube Type	Chassis
Exhaust Port Shape	Oval
Flange Style	Standard
Primary Tube Diameter	1-5/8"
Material Type	Steel
Color	Silver
Weld-Up	No
Collector Diameter	2-1/2 Inch
Finish	Ceramic Coated
Hardware Included	Yes
Gasket(s) Included	Yes
Collector Reducers Included	Yes
Collector Reducer Exit Diameter	2.25"
Collector Attachment Type	3-bolt flange

GENERAL
Sold in Quantity	Pair
Notes	Includes a pair of reducers (2.50" to 2.25")
Collector Length	4"
Flange Thickness	.35"
Port Height	1.66"
Port Width	1.38"
Drivers Side Dimension A	5.35"
Drivers Side Dimension B	15.2"
Drivers Side Dimension C	21"
Passenger Side Dimension A	6.5"
Passenger Side Dimension B	14.25"
Passenger Side Dimension C	22.75"

Ratings & Reviews

4.6

17 Reviews

Overall Assessment

The product reviewed, presumably car headers, is praised for its excellent fit, quality finish, and affordability. Customers have confirmed its practicality in vehicles, particularly in a 1955 Chevy Belair 350 and a tri-five. They applaud the quality of the build and thick flanges. Some users noticed ground clearance improvements and appreciated the hardware kit that came with the product. The ceramic coating's visual appeal is a vital focus, enhancing the car's look to a show-quality level. Users recommended the product due to their comparative advantages like fit and usability. However, a few highlighted a spark plug clearance issue, possibly indicating space for improvement. Despite this, overall satisfaction notably outshines the minor complications.

Write A Review

4.6

17 reviews

Most Liked Positive Review

5.0

Great set Of headers!!

I bought this set with all my parts in mind, original clurch linkage, aftermarket starter custom motor mounts, you name I had it. I had to install the driver's side from under the car, remove the bell crank clutch linkage and dipstick but after they were installed, they fit!! I couldn't belive how well they fit!! These things might not flow like my other set I had but the cars on airbags and I needed everything inside the chassis. Highly recommend!!

Most Liked Negative Review

2.0

Needs some modification

The manufacturer of this header needs to re-install it on a small block again and make corrections for spark plug clearance. It is no longer within specification. I have purchased two sets one in black and one in ceramic coated. Both have the same spark plug clearance problem. This could be corrected very easily when manufactured.

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Sort Reviews

They look great, but don't fit!

4.0

a year ago

George

Detroit

Verified

They really look good but the pipes are so close to the spark plug holes you can't put the 3 and 5 plugs in. I tried these on SBC with Edlbrock aluminum performer heads in a 55 chevy 210. I actually bought the same headers 3 or 4 years ago while I accumulated parts and when I finally tried them they fit worse than the new ones.

Would Not Recommend

Could've been packaged better

3.0

2 years ago

Sam

Birmingham, Alabama

Verified

Product had some scratches on it from shipping upon delivery, due to lack of packaging around headers. Should've bought the blemished set for sale and saved some money, but the product installed flawlessly within minutes. Fitment is precise, I will need to either dent the collector where the idler arm is mounted, or cut the ends of the idler arm mounting bolts flush at the top of the nut for clearance (speedway power steering kit for 55 bel air) For a fraction of the price of the hedman long tubes, as well as being less complicated to install, these are a good choice. Highly recommend getting non finished to prevent heartache from shipping scars

Would Recommend

Nice price and a nice product

5.0

3 years ago

Chevy Jim

Louisville ,Ky

Verified

I bought these for my 55 Chevy Belair 350. I waited for 2 months but it was well worth it! Nice finish and fit.

Would Recommend

Street Rod build

5.0

6 years ago

Br423

Elkhorn Ne

Verified

Nice finish. Good price. Slow delivery.

Would Recommend

3/4 headers

5.0

8 years ago

The car guy

woodbury Mn.

Verified

I hope the headers will give me the ground clearance I need. Full length headers give very little clearance and hang below the frame.

Would Recommend

Love the Mid Length Headers. Well built and thick flanges.

5.0

9 years ago

Willie

Wichita KS

Verified

Fast shipping and easy to find and order!

Would Recommend

I would buy this again

4.0

9 years ago

jack

Bakersfield, Ca

Verified

great coating, nice hardware kit, thick flange, besides the steering arm problem they fit pretty good

Would Recommend

Great fitting headers

5.0

9 years ago

Southern California

Verified

Headers were easy to install. The fit was right on, just as described

Would Recommend

Needs some modification

2.0

10 years ago

By the book

Garretson SD

Would Not Recommend

Great Headers

5.0

10 years ago

Phila, PA

Very nice headers and very easy to install. Got these knowing i had aftermarket side motor mounts, and no problem. Would recommend these for any tri-five.

Would Recommend

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Showing 10 of 17 reviews

Questions & Answers

12 Questions • 10 Answers

Sort Questions

I have a 1957 Belair 2dr HT originally with a 6cyl. Will be installing a Gen 1 350sbc. Original pitman arm, original steering box, 4 spd manual T-100, original clutch location, Edelbrock Performer heads (straight plugs). Prefer a 3/4 length or shorty header (bare steel). What header will fit this combination or what modifications need to be made? Also, what is it about Edelbrock heads that cause a problem with certain headers?

by Ron

• 8 years ago

1 answer

View Answer

I have a 1957 chevy with a 350 motor, 700r trans and 500 series steering box, floor shifter, the motor is located in the original position and stock steering linkage. Will these headers fit properly?

by Steve

• 10 years ago

1 answer

View Answer

hi, has anyone else who installed these headers have a problem with burning their plug wire boots? Ive been through 2 sets of wires already, used, header plugs and wire boot insulators and still continue to be burning the boots. Seems the pipes are too close to the plugs.

by John

• 10 years ago

1 answer

View Answer

will these work with 265 with gen/power steering and a tremec 5 speed, hydraulic clutch ,front mounts and stock suspension. If not what will?......thanks

by canadianscott

• 10 years ago

1 answer

View Answer

Will these headers work on a stock 265 engine with a 700 r4

by Frankman

• 11 years ago

1 answer

View Answer

i HAVE A 56 4 DOOR CHEVY BELLAIR AND I PUT A SHORT BLOCK 350 ENGINE AND I NEED TO KNOE WHAT TYPE OF HEADERS WILL FIT?

by ORLY

• 12 years ago

1 answer

View Answer

hi i have a 56 chevy with 69 350 using stock front motor mounts, 500 series power steering box, stock clutch linkage, motor is in stock location, with Richmond 5 speed. will these headers work?

by twin

• 12 years ago

1 answer

View Answer

Have a 57 Bel Air with items listed below and would like to know if header will work Automatic with Column shift Rack and Pinion Steering 84 350 Engine with Straight Plugs

by Bill2

• 12 years ago

1 answer

View Answer

i have 57 chevy 2 dr hardtop ,i install 1991 tpi motor ,im use stock sterring box i change the motor mount to install the tpi motor will these header

by venny

• 12 years ago

1 answer

View Answer

Will these headers work in my 1956 Chevy 210 (2 dr post) ? If not - what do you recommend ? Gen 1 SBC 350 - with side mounted engine mounts which shift the engine 3/4" forward to provide clearance for my HEI distributor... 700r4 automatic tranny 500 power steering box

by Beef

• 13 years ago

1 answer

View Answer

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Fitment

1959 Chevy 3A

2-Piece Rear Main Chevy 283

1959 Chevy 3B

2-Piece Rear Main Chevy 283

1959 Chevy 3C

2-Piece Rear Main Chevy 283

1959 Chevy 3D

2-Piece Rear Main Chevy 283

1959 Chevy 3E

2-Piece Rear Main Chevy 283

1959 Chevy 3F

2-Piece Rear Main Chevy 283

1959 Chevy 3G

2-Piece Rear Main Chevy 283

1957-1967 Chevy Bel Air

2-Piece Rear Main Chevy 283

1968 Chevy Bel Air

Gen 1 L14 Small Block Chevy

1970-1975 Chevy Bel Air

2-Piece Rear Main Chevy 400

1958-1967 Chevy Biscayne

2-Piece Rear Main Chevy 283

1968 Chevy Biscayne

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Biscayne

2-Piece Rear Main Chevy 400

1969-1973 Chevy Blazer

Gen 1 L14 Small Block Chevy

1958-1961 Chevy Brookwood

2-Piece Rear Main Chevy 283

1969 Chevy Brookwood

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Brookwood

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1960-1967 Chevy C10

2-Piece Rear Main Chevy 283

1968-1973 Chevy C10

Gen 1 L14 Small Block Chevy

1976-1980 Chevy C10

2-Piece Rear Main Chevy 400

1960-1967 Chevy C10 Suburban

2-Piece Rear Main Chevy 283

1968-1973 Chevy C10 Suburban

Gen 1 L14 Small Block Chevy

1960-1967 Chevy C20

2-Piece Rear Main Chevy 283

1968-1973 Chevy C20

Gen 1 L14 Small Block Chevy

1976-1980 Chevy C20

2-Piece Rear Main Chevy 400

1960-1967 Chevy C20 Suburban

2-Piece Rear Main Chevy 283

1968-1973 Chevy C20 Suburban

Gen 1 L14 Small Block Chevy

1976-1980 Chevy C20 Suburban

2-Piece Rear Main Chevy 400

1960-1967 Chevy C30

2-Piece Rear Main Chevy 283

1968-1973 Chevy C30

Gen 1 L14 Small Block Chevy

1976-1979 Chevy C30

2-Piece Rear Main Chevy 400

1967-1968 Chevy Camaro

Gen 1 DZ Small Block Chevy

1969 Chevy Camaro

Gen 1 DZ Small Block Chevy
Gen 1 L14 Small Block Chevy

1970-1973 Chevy Camaro

Gen 1 L14 Small Block Chevy

1966-1967 Chevy Caprice

2-Piece Rear Main Chevy 283

1968-1969 Chevy Caprice

Gen 1 L14 Small Block Chevy

1970-1973 Chevy Caprice

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1974-1976 Chevy Caprice

2-Piece Rear Main Chevy 400

1964-1967 Chevy Chevelle

2-Piece Rear Main Chevy 283

1968-1969 Chevy Chevelle

Gen 1 L14 Small Block Chevy

1970-1973 Chevy Chevelle

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1963-1967 Chevy Chevy II

2-Piece Rear Main Chevy 283

1968 Chevy Chevy II

Gen 1 L14 Small Block Chevy

1957-1961 Chevy Corvette

2-Piece Rear Main Chevy 283

1957-1958 Chevy Del Ray

2-Piece Rear Main Chevy 283

1959-1960 Chevy El Camino

2-Piece Rear Main Chevy 283

1964-1967 Chevy El Camino

2-Piece Rear Main Chevy 283

1968-1969 Chevy El Camino

Gen 1 L14 Small Block Chevy

1970-1973 Chevy El Camino

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1974-1976 Chevy El Camino

2-Piece Rear Main Chevy 400

1969 Chevy Estate

Gen 1 L14 Small Block Chevy

1970 Chevy Estate

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1976 Chevy G10

2-Piece Rear Main Chevy 400

1968-1973 Chevy G10 Van

Gen 1 L14 Small Block Chevy

1975-1980 Chevy G20

2-Piece Rear Main Chevy 400

1967 Chevy G20 Van

2-Piece Rear Main Chevy 283

1968-1973 Chevy G20 Van

Gen 1 L14 Small Block Chevy

1975-1980 Chevy G30

2-Piece Rear Main Chevy 400

1958-1967 Chevy Impala

2-Piece Rear Main Chevy 283

1968-1969 Chevy Impala

Gen 1 L14 Small Block Chevy

1970-1973 Chevy Impala

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1974-1976 Chevy Impala

2-Piece Rear Main Chevy 400

1960-1967 Chevy K10

2-Piece Rear Main Chevy 283

1968-1973 Chevy K10

Gen 1 L14 Small Block Chevy

1975-1980 Chevy K10

2-Piece Rear Main Chevy 400

1960-1967 Chevy K10 Suburban

2-Piece Rear Main Chevy 283

1968-1973 Chevy K10 Suburban

Gen 1 L14 Small Block Chevy

1975-1979 Chevy K10 Suburban

2-Piece Rear Main Chevy 400

1960-1967 Chevy K20

2-Piece Rear Main Chevy 283

1968-1973 Chevy K20

Gen 1 L14 Small Block Chevy

1975-1980 Chevy K20

2-Piece Rear Main Chevy 400

1967 Chevy K20 Panel

2-Piece Rear Main Chevy 283

1960-1967 Chevy K20 Suburban

2-Piece Rear Main Chevy 283

1968-1973 Chevy K20 Suburban

Gen 1 L14 Small Block Chevy

1975-1980 Chevy K20 Suburban

2-Piece Rear Main Chevy 400

1968-1973 Chevy K30

Gen 1 L14 Small Block Chevy

1977-1980 Chevy K30

2-Piece Rear Main Chevy 400

1975-1979 Chevy K5 Blazer

2-Piece Rear Main Chevy 400

1959-1961 Chevy Kingswood

2-Piece Rear Main Chevy 283

1969 Chevy Kingswood

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Kingswood

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1973 Chevy Laguna

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1974-1976 Chevy Laguna

2-Piece Rear Main Chevy 400

1964-1967 Chevy Malibu

2-Piece Rear Main Chevy 283

1973 Chevy Malibu

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1974-1976 Chevy Malibu

2-Piece Rear Main Chevy 400

1970-1976 Chevy Monte Carlo

2-Piece Rear Main Chevy 400

1957-1961 Chevy Nomad

2-Piece Rear Main Chevy 283

1969-1973 Chevy Nova

Gen 1 L14 Small Block Chevy

1957 Chevy One-Fifty Series

2-Piece Rear Main Chevy 283

1976 Chevy P30

2-Piece Rear Main Chevy 400

1961-1962 Chevy P30 Series

2-Piece Rear Main Chevy 283

1968-1969 Chevy P30 Van

Gen 1 L14 Small Block Chevy

1973 Chevy P30 Van

Gen 1 L14 Small Block Chevy

1959-1961 Chevy Parkwood

2-Piece Rear Main Chevy 283

1957-1958 Chevy Sedan Delivery

2-Piece Rear Main Chevy 283

1960-1967 Chevy Suburban

2-Piece Rear Main Chevy 283

1969 Chevy Townsman

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Townsman

2-Piece Rear Main Chevy 400
Gen 1 L14 Small Block Chevy

1957-1958 Chevy Truck

2-Piece Rear Main Chevy 283

1960 Chevy Truck

2-Piece Rear Main Chevy 283

1957 Chevy Two-Ten Series

2-Piece Rear Main Chevy 283

1958 Chevy Yeoman

2-Piece Rear Main Chevy 283

1966 GMC 1000

2-Piece Rear Main Chevy 283

1960 GMC 1000 Series

2-Piece Rear Main Chevy 283

1962-1965 GMC 1000 Series

2-Piece Rear Main Chevy 283

1960-1965 GMC 1500 Series

2-Piece Rear Main Chevy 283

1966 GMC 2500

2-Piece Rear Main Chevy 283

1960-1965 GMC 2500 Series

2-Piece Rear Main Chevy 283

1960-1966 GMC 3000

2-Piece Rear Main Chevy 283

1960-1966 GMC 3500

2-Piece Rear Main Chevy 283

1967 GMC C25/C2500 Pickup

2-Piece Rear Main Chevy 283

1968-1972 GMC C25/C2500 Pickup

Gen 1 L14 Small Block Chevy

1967 GMC C25/C2500 Suburban

2-Piece Rear Main Chevy 283

1968-1972 GMC C25/C2500 Suburban

Gen 1 L14 Small Block Chevy

1967 GMC C35/C3500 Pickup

2-Piece Rear Main Chevy 283

1968-1972 GMC C35/C3500 Pickup

Gen 1 L14 Small Block Chevy

1973-1974 GMC C35/C3500 Pickup

2-Piece Rear Main Chevy 400

1975-1978 GMC K15

2-Piece Rear Main Chevy 400

1975-1978 GMC K15 Suburban

2-Piece Rear Main Chevy 400

1967-1974 GMC K15/K1500 Pickup

2-Piece Rear Main Chevy 400

1967-1974 GMC K15/K1500 Suburban

2-Piece Rear Main Chevy 400

1979-1980 GMC K1500 Suburban

2-Piece Rear Main Chevy 400

1975-1978 GMC K25

2-Piece Rear Main Chevy 400

1975-1978 GMC K25 Suburban

2-Piece Rear Main Chevy 400

1967 GMC K25/K2500 Pickup

2-Piece Rear Main Chevy 283

1968-1972 GMC K25/K2500 Pickup

Gen 1 L14 Small Block Chevy

1973-1974 GMC K25/K2500 Pickup

2-Piece Rear Main Chevy 400

1967 GMC K25/K2500 Suburban

2-Piece Rear Main Chevy 283

1968-1972 GMC K25/K2500 Suburban

Gen 1 L14 Small Block Chevy

1973-1974 GMC K25/K2500 Suburban

2-Piece Rear Main Chevy 400

1979-1986 GMC K2500 Suburban

2-Piece Rear Main Chevy 400

1967 GMC K35/K3500 Pickup

2-Piece Rear Main Chevy 283

1968-1972 GMC K35/K3500 Pickup

Gen 1 L14 Small Block Chevy

1973-1974 GMC K35/K3500 Pickup

2-Piece Rear Main Chevy 400

1966 GMC P1000

2-Piece Rear Main Chevy 283

1973-1977 GMC Sprint

2-Piece Rear Main Chevy 400

1955-1966 GMC Suburban

2-Piece Rear Main Chevy 283

1967 GMC Suburban

Gen 1 L14 Small Block Chevy

1956-1960 GMC Truck

2-Piece Rear Main Chevy 283

1965-1966 Studebaker Commander

2-Piece Rear Main Chevy 283

1965-1966 Studebaker Cruiser

2-Piece Rear Main Chevy 283

1965-1966 Studebaker Daytona

2-Piece Rear Main Chevy 283

1966 Studebaker Wagonaire

2-Piece Rear Main Chevy 283