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05-14-2024, 02:34 PM | #1 |
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Join Date: Dec 2012
Location: Temple City
Posts: 3,606
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1995-2007 Vortec intake manifolds
I was putting stuff away, and I found a 5.7 Vortec lower intake manifold. That I was messing with to make a 3 duece intake for my dad. So out of boredom I put it on my L99 4.3 V8 aka the mid 90's baby LT1 to see if it could work.
While it is a chonky girl. All it would take me to make it fit is some grinding to relocate the bolt holes. As it only uses the outer 8 bolts. On the plus side. The runners are 7 inches long vs my LT's 2.5 inches. So I could get a big shot of torque that I am looking for. Like I said the engine is a 1996 4.3 L99 V8 or baby LT1. It has a Corvette cam with bolt ons. On the very generous side 280 hp with 290lbft torque. Or we'll below what I understand the poppet valves to support of roughly 400/400. How tuneable is the poppet valve system vs regular injectors? Do you think the base manifold design is better then the 80's tpi set up? |
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