swaping 96 vortec 350 for my l98 - Third Generation F-Body Message Boards

wannafbody · 11-03-2009, 10:04 PM

l98 is blown... found a good deal on a vortec truck motor that runs good..

My question is will I see much of an improvement in this motor as far as Hp/Tq goes? I knows its only rated at 10more Hp but that is with the truck intake and not the Tpi intake.

Also, what would be the largest cam i could use with the stock vortec heads?

Thanks

vetteoz · 11-03-2009, 11:27 PM

Quote:

Originally Posted by wannafbody

My question is will I see much of an improvement in this motor as far as Hp/Tq goes? I knows its only rated at 10more Hp but that is with the truck intake and not the Tpi intake.

Vortec heads require special Vortec base to run TPI

Quote:

Originally Posted by wannafbody

what would be the largest cam i could use with the stock vortec heads?

Vortec heads are good for .470 lift unless you change the springs and retainers or machine valve guides for more retainer clearance

wannafbody · 11-04-2009, 05:59 AM

im ordering the SD vortec base.
Has anyone used the tool that comp cams makes to machine the heads with your drill?

vetteoz · 11-04-2009, 07:26 AM

Quote:

Originally Posted by wannafbody

Has anyone used the tool that comp cams makes to machine the heads with your drill?

Easier to swap the springs and retainers

http://www.thirdgen.org/techboard/te...ortec-lt4.html (5.7 Vortec LT4 Hotcam Install Pics and Information)