Visit The Dirt Forum for More Information

Author Topic:   Exhaust Manifolds, Rams horn #'s
UFnARacing
Dirt Full Roller

Total posts: 68
posted December 10, 2002 07:58 PM
I can get a set of rams horn exhaust manifolds, casting #3932461. I've looked around where I know to look, looks like they come from a 72 or so corvette. Are these the 2.5" or are they the 2.25" manifolds? Any one know for sure?

Can't get to them to check diameters.

Thanks,
Randy

66jj
Dirt Freak

Total posts: 352
posted December 12, 2002 01:04 AM
IF THEY WONT CHECK THEY ARENT THE LARGE ONES I BET.

MRRACING.COM HAS SOME ONLINE FOR SALE THAT ARE THE BIG ONES.

UFnARacing
Dirt Full Roller

Total posts: 68
posted December 12, 2002 10:04 AM
I'm starting to think they're 2.25" also. I tried "mrracing.com", nothing there. Still looking for some 2.5" manifolds.

Randy

Flatlander
Dirt Freak

Total posts: 310
posted December 12, 2002 01:05 PM
Try mrracing.com thet usaully have some in their used section I will also say this though there are some truck exhaust manifolds that do well and ramhorms will crack so be sure and secure your exhaust well when you install it

UFnARacing
Dirt Full Roller

Total posts: 68
posted December 12, 2002 02:02 PM
As I stated above, I've tried these exact words, to look for this website: "mrracing.com" "mracing.com". Both of these addresses are no good.

Randy

jhon hollomon
Dirt Maniac

Total posts: 181
posted December 12, 2002 02:47 PM
I've done some searching too. I haven't found the number you posted anywhere. Still looking though.

UFnARacing
Dirt Full Roller

Total posts: 68
posted December 12, 2002 03:09 PM
OK, finall had some real time (at work) to do some looking. These came off a 70' to 72' Vette with a 350, I believe an LT1 engine. What I can't find is whether they're 2.5" or not. Does anyone know??

Thanks,
Randy

ryan
Dirt Freak

Total posts: 430
posted December 12, 2002 04:55 PM
Betcha this is it http://www.mrracingequipment.com/usedparts.html

Flatlander
Dirt Freak

Total posts: 310
posted December 12, 2002 10:57 PM
You got it Ryan

Racer14K
Dirt Freak

Total posts: 247
posted December 13, 2002 01:22 PM
According to my exhaust catalog '64 - '68 327 corvette used 2.5" exhaust pipes off the manifolds and also '70 - '72 350 high performance used 2.5" exhaust pipes.

Hope this helps.

Eljojo
Dirt Freak

Total posts: 273
posted December 14, 2002 07:39 AM
I thought the "ram horns" were only used on the early 'Vettes? Aren't the 70-72 manifolds a log type? Chevy used a "Y" type on trucks, but they surly weren't 2 1/2"!

Back to the Archives