sounds good though.
Horsepower Increase
Race Director
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
It depends, you could be up 20 or more.
This gives some idea of what's possible.
http://www.corvettefaq.com/c3/ganeyexhaust.htm
Also gas milage can go up about 1 mpg w/ duals & another 1 w/ headers.
This gives some idea of what's possible.
http://www.corvettefaq.com/c3/ganeyexhaust.htm
Also gas milage can go up about 1 mpg w/ duals & another 1 w/ headers.
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Have you considered a Vortec head, intake, and cam swap? The swap alone on an L48, will net around 100 HP when combined with good exhaust. The heads can be bought cheap used at almost any salvage yard, and can be installed with very no machine work. A cheap Summit cam and lifters combo tops off the swap. Overall, I think a 100 HP gain for around $700 is very good.
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Thread Starter
Le Mans Master
Joined: Jul 2004
Posts: 6,248
Likes: 4
From: Lancaster PA
Have you considered a Vortec head, intake, and cam swap? The swap alone on an L48, will net around 100 HP when combined with good exhaust. The heads can be bought cheap used at almost any salvage yard, and can be installed with very no machine work. A cheap Summit cam and lifters combo tops off the swap. Overall, I think a 100 HP gain for around $700 is very good.
You have me thinking now 
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Just let me know. I would be happy to help you fin some cheap heads and I have the part number for the cam if you like. The intake is easy to find and cheap on Ebay.
Machine work on the heads are really not needed, but there are a few things that help. Screw in studs and guide plates are very nice. If you don't use guides...self aligning rockers are suggested.
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
Probably less than 6-8 HP, about the same for torque - not enough for a SOTP difference. Completely agree that heads/cam swap would make a huge difference. Not sure about 100HP, but 50+ depending on the cam, etc.
Thread Starter
Le Mans Master
Joined: Jul 2004
Posts: 6,248
Likes: 4
From: Lancaster PA
Just let me know. I would be happy to help you fin some cheap heads and I have the part number for the cam if you like. The intake is easy to find and cheap on Ebay.
Machine work on the heads are really not needed, but there are a few things that help. Screw in studs and guide plates are very nice. If you don't use guides...self aligning rockers are suggested.
Machine work on the heads are really not needed, but there are a few things that help. Screw in studs and guide plates are very nice. If you don't use guides...self aligning rockers are suggested.
