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Product Summary

Chassis Header Tube Type, Oval Exhaust Port Shape, Raw

  • Speedway headers allow you to keep the exhaust system under your '55-'57 Chevy car
  • Provides more ground clearance than full-length headers, yet makes more power than "shorty" style
  • These chassis headers fit 283-400 S/B Chevy V8s
  • Has 1-5/8" primary tubes with 2-1/2" collectors
See more details

Key Specs

MFG. Part #930C7
Header Tube TypeChassis
Exhaust Port ShapeOval
Flange StyleStandard
Primary Tube Diameter1-5/8"
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 930C7 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.

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

Includes a pair of reducers (2.50" to 2.25").

  • 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"

Charts

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.

Speedway Motors 930C7 Specifications

KEY SPECS
MFG. Part #930C7
BrandSpeedway Motors
Header Tube TypeChassis
Exhaust Port ShapeOval
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel
ColorNatural
Weld-UpNo
Collector Diameter2-1/2 Inch
FinishRaw
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedYes
Collector Reducer Exit Diameter2.25"
Collector Attachment Type3-bolt flange
GENERAL
Sold in QuantityPair
Collector Length4"
Flange Thickness.35"
Port Height1.66"
Port Width1.38"
Drivers Side Dimension A5.35"
Drivers Side Dimension B15.2"
Drivers Side Dimension C21"
Passenger Side Dimension A6.5"
Passenger Side Dimension B14.25"
Passenger Side Dimension C22.75"

Ratings & Reviews

4.8

16 Reviews

Overall Assessment

Customers praise the product for its excellent fit in a variety of builds, including 56, 55, and 57 Chevys and a '57 Chevy truck. The use of minimal modifications and compatibility with both manual and power steering box is highly appreciated. Customers confirmed the high quality of the product, not only in terms of its performance but also for its look and height, providing good clearance and protection for the dist-cap. They note that it works as expected, even in engines set forward. While occasional modifications were needed, most found the product is worth its price.

4.8

16 reviews

5

13

4

2

3

1

2

0

1

0

Most Liked Positive Review

5.0

Good fit on '57 Chevy Truck

I bought these headers for a '57 Chevy truck that I am rebuilding. Nice fit for 350 and 700R4

Most Liked Negative Review

3.0

Maybe

Mine hit the steering box and the bolt for the draglink bracket on the right side. Had to modify a bit. Number 7 angle boot pinned right header. What did i exspect for$160 bucks?

Filter by Ratings

Product was spot on

5.0

5 months ago

57 guy

Oklahoma

The parts department sit on the phone with me for over 20 minutes, making sure I had exactly the right thing I needed

Would Recommend

Great fit

5.0

a year ago

Rat Rod Relics

Saginaw MI

Verified

Great fit on our '57 Chevy with manual transmission

Would Recommend

yes

5.0

a year ago

Clint

Glendive , Montana

Verified

great fit good

Would Recommend

Great fit!

5.0

2 years ago

Naturalgearhead

Florida

Verified

Fit my 56 with a sbc, and manual steering…with minimal persuasion of the hammer technique

High quality!

5.0

3 years ago

John

Zanesville Ohio

Verified

Best price on Patriot headers for tri five Chevy available!

Would Recommend

Great fit!

5.0

3 years ago

Marc Madison

Tioga, TX

Verified

Great price! Fit the 1955 chevyy

Would Recommend

Fit perfect

5.0

5 years ago

Rocket

Iowa

Verified

Works perfect with power steering box.

Would Recommend

probably would buy again

4.0

7 years ago

Fireman 57

Missouri

Verified

350 chevy crate motor in a 57 chevy 210.

Would Recommend

yes

5.0

7 years ago

big boy

29067 s.c.

Verified

work just like they were to suppose to and I like the look and they are high enough to not have them dragging in low places. thank

Would Recommend

yes they look great on my Small block

5.0

7 years ago

big boy

29067 s.c.

Verified

I was not sure because we set the engine forward 3/4 " but all is well to give room on the fire wall to protect the dist-cap but all is well '

Would Recommend

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Showing 10 of 16 reviews

Fitment

  • 2-Piece Rear Main Chevy 283

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 400

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  • Gen 1 L14 Small Block Chevy

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