Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
Speedway Motors Logo
America's Oldest Speed Shop ®

Search

Big Block Chevy Weld Up Header Kit, 2 In Primary, 3.5 In Collector

Specs
Material Type:
Steel
Sold in Quantity:
Kit
Finish:
Natural
Tube O.D.:
2.00
Port Height:
2.065
Port Width:
2.065
Flange Thickness:
.31
Flange Style:
Round Port
Collector Diameter :
3.50
Gasket(s) Included:
Yes
Collector Length:
12.00
Garage Sale:
No
Big Block Chevy Weld Up Header Kit, 2 In Primary, 3.5 In Collector
Big Block Chevy Weld Up Header Kit, 2 In Primary, 3.5 In Collector
Big Block Chevy Weld Up Header Kit, 2 In Primary, 3.5 In Collector
Big Block Chevy Weld Up Header Kit, 2 In Primary, 3.5 In Collector

Click image to enlarge

Please NOTE the following about this product:

  • This item is sold as a kit.

Details

Reviews

Q & A

What's in the Box

These B/B Chevy (BBC) headers feature 18 gauge mild steel designed for many racing and rodding applications where 396, 402, 427, 454 and 502 Chevy engines are used. Headers have a 2" diameter tube and 3-1/2" diameter collector. Kit includes eight mandrel-bent primary tubes,  two pre-formed collectors, two extra-thick oval port flanges, two gaskets and twelve header bolts.

Designed for the seasoned, hands-on enthusiast, weld up headers will require some cutting, fitting and welding.

Customer Reviews

Rated 5 out of 5 by 4 reviewers.
RATING BREAKDOWN
4 reviews
5 Stars
4
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

pdiddy08
Verified Purchaser
Odessa, FL, USA
Product Rating

awesome

June 10, 2014
They look to fit perfect, another happy customer !!!!
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

andy
Verified Purchaser
wisconsin
Product Rating

Excellent kit

June 16, 2012
wish the discription included info on the 2" tubes, lengths from bends etc. had to take a chance these would work for my application. Kit is well worth the price,
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

PDiddle
Product Rating

Good purchase

January 08, 2015
Lots of pipe and bends to work with, only complaint would be the flanges i received were 5/16" thick instead of the advertised 3/8". Still a great kit for the price though.
Pros:
  • bargain for what you get
Cons:
  • flanges not 3/8"
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

GeoffMorgan
Montreal, MO
Product Rating

excellent for the do it yourself builder

February 28, 2013
This is an excellent kit! I use many of these kits and build fenderwell headers for our mud racers. Nice big primaries, thick flanges and long collectors. Well worth the price.
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

Page 1 of 1
41865640

Product Q&A

2 questions : 3 answers

1 answers

Will these work for a BBc in a 1985 C15 pickup?

Chipper9
Gurley, NE, USA
September 01, 2014

Will these work for a BBc in a 1985 C15 pickup?

Answers

September 02, 2014
EricM
The primary tube design as they are provided will not fit in your pickup but you could certainly get some U bends or combo bends to change the primary tube routing so that they fit your application.
2 answers

Hi, what are the diameters of the pipes (single pipes and collector) in metric system (mm)?

October 11, 2011

Hi, what are the diameters of the pipes (single pipes and collector) in metric system (mm)?

Answers

June 11, 2014
pdiddy08
The primarys are 50.8mm and the collectors 88.9 mm
October 12, 2011
Jason
This kit has 2"(50.8mm) tubes and 3-1/2"(88.9mm) collector.
Page 1 of 1

You may also be interested in:

ARP Fasteners 400-1201 Stainless Steel Header Bolts, 3/8-16 x 3/4, Set/12
(Part #1014001201)
                        

ARP Fasteners 12 point header bolts with 3/8"-16 x .750" UHC threads. Includes washers. Uses 3/8" 12 pt. socket. 170,000 PSI.

Perfect for use with headers on AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

Header Reducer Kit, 2-1/2 to 2 Inch
(Part #91013751)
                        Each mild steel reducer comes with a welded-on 3-bolt flange, gaskets and bolts.
                    
DEi 010126 Titanium Exhaust Wrap, 1 Inch x 50 Ft Roll
(Part #9101126)
                        

This exhaust wrap by Design Engineering, Inc. is made from pulverized lava rock and can stand 1800 degrees directly or 2500 degrees indirectly. Perfect for those extreme conditions and you don't need to use any spray-on coatings with it. Resists abrasion for longer life.

  • Constructed from pulverized lava rock - titanium-like strength and toughness
  • Reduces underhood temps resulting in cooler air intake for improved performance 
  • Able to handle 25% more heat than conventional wrap
  • Capable of handling more heat than any other wrap found in the market today
  • It’s pliable - no need to wet the wrap when wrapping tubing
  • Will not shrink
  • More resistant to temperature/vibration break-down, abrasions, chemical and hot oil spills
  • Very cool carbon fiber look

Works best on Stainless Steel headers.

Instruction Sheet (PDF)

Frequently Asked Questions (PDF)