Shorty Block Hugging Headers
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 2,529
Likes: 27
From: Auburndale Florida
2025 C2 of the Year ('64-'66) Finalist - Unmodified
St. Jude Donor '03-'05-'06-'07-'09
Shorty Block Hugging Headers
Anyone know if the ceramic shorty or block hugging headers will bolt up to the stock exhaust flange. Or does the exhaust system need modification? thanks
Mark
Mark
Burning Brakes
Joined: May 2001
Posts: 1,102
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From: spring city pa
I have run a set of patriot shorty oval port block hugger for a couple of years . While they do require some minor rerouting of the exhaust pipe , they have the correct flanges to fit the stock pipe . They are listed as fitting angle plug heads but I have them on a set of AFR straight plug with no clearance problems . The build quality and materials are very good .
Geo
Geo
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Originally Posted by nhlgopens
I've always wondered the same thing... why doesn't someone design a set of shorty headers that would bolt directly to "factory" exhaust without mods?
Team Owner
Joined: Jul 2004
Posts: 23,957
Likes: 174
From: South West - but north of Dayton, Ohio
Originally Posted by comp
i think it would be hard to do
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Burning Brakes
Joined: Jun 2000
Posts: 892
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From: GA
http://store.summitracing.com/partde...=KeywordSearch
These are the ones I have. Brand new... never used... just bought for same reason as this thread. I went with Dynomax long tubes instead.
For a fellow Corvette enthusiast... $45 plus ship. Ship will be relatively cheap... I will send them through my work... next day... hee hee maybe $15 for ... maybe cheaper...
Hey, I also have a 73 4bolt 355cu in that I don't need. No cam as it had a bad exhaust lobe. I have big hard plastic crate that my replacement motor came in... Ran good except for the cam lobe problem.. anyone? anyone? Bueller? hahaha
These are the ones I have. Brand new... never used... just bought for same reason as this thread. I went with Dynomax long tubes instead.
For a fellow Corvette enthusiast... $45 plus ship. Ship will be relatively cheap... I will send them through my work... next day... hee hee maybe $15 for ... maybe cheaper...
Hey, I also have a 73 4bolt 355cu in that I don't need. No cam as it had a bad exhaust lobe. I have big hard plastic crate that my replacement motor came in... Ran good except for the cam lobe problem.. anyone? anyone? Bueller? hahaha
Race Director
Joined: Aug 2004
Posts: 10,628
Likes: 132
From: Duvall, WA
Maybe no one makes them because there's no power gain to be had by routing them to mimic stock exhaust manifolds. I know the ram's horns flow prettty well for an exhaust manifold and shorty headers have the reputation for not doing much for power. Just speculation.
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Originally Posted by rcread
Maybe no one makes them because there's no power gain to be had by routing them to mimic stock exhaust manifolds. I know the ram's horns flow prettty well for an exhaust manifold and shorty headers have the reputation for not doing much for power. Just speculation.
Burning Brakes
Joined: May 2004
Posts: 1,100
Likes: 3
From: belle plaine ks
shorty
Originally Posted by comp
pretty close
It seems to me the ram's horn cast iron flows a little better. I switched to shorty's (1 5/8 inch) and chambered exhaust, and it seems a little more restrictive. I've thought about Sanderson's cast iron shorty's but that's like paying for expensive ram's horns. I guess I'll bite the bullet and buy full length headers one of these days and make the switch.
Le Mans Master
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
I have seen dyno runs on BBC cast iron and C-5 stock manifolds v. long tube headers...there is no appreciable power gain below 6,000 rpms. on a stock engine. Looks like Chevy did a good job designing the manifolds.
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
Originally Posted by nhlgopens
I've always wondered the same thing... why doesn't someone design a set of shorty headers that would bolt directly to "factory" exhaust without mods?
Also, buy making custom shortys for Vettes, you automatically rule out Chevelles, Camaros, etc. The market is probably too small.
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Originally Posted by big_G
I have seen dyno runs on BBC cast iron and C-5 stock manifolds v. long tube headers...there is no appreciable power gain below 6,000 rpms. on a stock engine. Looks like Chevy did a good job designing the manifolds.
Instructor
Joined: Jul 2004
Posts: 245
Likes: 0
Originally Posted by Mr.Gearhead
Hey, I also have a 73 4bolt 355cu in that I don't need. No cam as it had a bad exhaust lobe. I have big hard plastic crate that my replacement motor came in... Ran good except for the cam lobe problem.. anyone? anyone? Bueller? hahaha
I sent you a e-mail on the 355.
Thanks,
Jeff
