10243880 -with 87 350 tpi
05-09-2006, 09:03 PM
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10243880 -with 87 350 tpi
im new to all this sooo
will this 87 tpi set up work on this block (10243880)
with the vortec heads
or what willl i have to do to make it fit like other heads
will this 87 tpi set up work on this block (10243880)
with the vortec heads
or what willl i have to do to make it fit like other heads
05-09-2006, 11:57 PM
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Car: 1987 Pontiac Trans Am GTA
Engine: 5.7 TPI, L98
Transmission: 700R4
Axle/Gears: 3.42:1
stock base will not fit vortec
You'll need to replace the manifold base to use the TPI on Vortec heads. Check out SPDC, Edelbrock, ASM and Accel. You can plan on spending $300 to $400 on one of these unless you get a deal on a used one.
Some folks have modified the stock base and/or the Vortec heads to work together. You may want to do a search on that.
Some folks have modified the stock base and/or the Vortec heads to work together. You may want to do a search on that.
05-10-2006, 10:20 AM
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Car: 1987 Pontiac Trans Am GTA
Engine: 5.7 TPI, L98
Transmission: 700R4
Axle/Gears: 3.42:1
vortec has taller ports
Yes. The ports on the Vortec are taller. The stock base manifold will not match the Vortec ports that well, but some people have made them work. Its not my reccommendation though. I would buy the aftermarket base.
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