Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

Aluminum intake for Bbc, Square port Part number 5605. Real old vintage intake. Needs to be cleaned up, has a Broken Bolt in one of the coil holes that needs to be drilled out. Its a low rise, dual quadrajet intake. Was going to use it on my Camaro but dont feel like changing to Square ports. Real Cool day 2 part. No broken bolt holes, and no porting or modifications done to it. $350 obo.

Re: Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

Forgot to mention, no stripped threads. And ports are real smooth from factory.

https://www.yenko.net/ubbthreads/pics...111_175701.jpg
https://www.yenko.net/ubbthreads/pics...111_175840.jpg
https://www.yenko.net/ubbthreads/pics...111_175938.jpg
https://www.yenko.net/ubbthreads/pics...111_175817.jpg

Re: Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

Just an FYI, many guys run rectangular port intakes on oval port heads with great results. You would think the port mismatch would be an issue but I have heard otherwise.


Jason

Re: Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SuperNovaSS</div><div class="ubbcode-body">Just an FYI, many guys run rectangular port intakes on oval port heads with great results. You would think the port mismatch would be an issue but I have heard otherwise.


Jason </div></div>

What he said [img]<<GRAEMLIN_URL>>/scholar.gif[/img]

Re: Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

Hi Jason, That's funny i've heard opposite. Ive heard Running Oval ports on Square port heads isnt a problem, but the other way round is. and either way I would think the sudden expansion/contraction of air at the junction of the two different ports would cause some power loss. Plus I'd rather just do it right.


Brandon

Re: Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

Jason -- I have done the exact thing on a .060 out 427 ... it ran great. The reason? Got a hell of a deal on the intake -- had a cracked bolt hole and bolt twisted off in the thermostat housing. TAZ

Re: Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

Back in the day the #163 intake was a popular choice since there weren't a lot of oval port options....and the Chevy unit was cheap and readily available. I can't speak to the science...but I know lots of guys who ran them and they seemed to work just fine.

Here is an old SYC thread..

https://www.yenko.net/ubbthreads/ubbt...opics/193427/1

There are similar stories on the other sites...believe it or not...it works.

wilma

Re: Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

yea all the Stock/SuperStock boys ran those stock intakes at one point. 10 second cars in Stock Eliminator.

Re: Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

I have a couple intakes I got from Jenkins when he passed, he seemed fond of the 6269318 marine manifold. No clue why.

Brandon

Re: Vintage Offenhauser 2x4 Aluminum Day 2 intake Bbc
 

MY BAD
I meant $250 obo.
Thanks, Brandon