C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

C4 track only, looking for cheap engine upgrades

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Old May 31, 2017 | 11:54 PM
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pmantegna@gmail.com's Avatar
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Default C4 track only, looking for cheap engine upgrades

I've looked through a number of threads and everyone is trying to upgrade the engine but keep the ecu, cross fire, etc. We've already ripped everything out, running an rpm intake and an edlebrock 650 carb with a distributor.

We would like to do heads/cam/intake for under 600 bucks. What are the best takeoff heads from any generation sbc that will bolt to the block? Would just having the l83 heads ported out and putting some higher ratio rockers on be better than swapping heads? The engine spends it's entire life between 3k and redline.

nothing has to be street legal, nothing needs a computer, just looking for cheapest, simplest horsepower upgrades. Exhaust can be fabbed up, intakes can be swapped, etc.

thanks everyone.
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Old Jun 1, 2017 | 12:13 AM
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Originally Posted by pmantegna@gmail.com
What are the best takeoff heads from any generation sbc that will bolt to the block?
L31 Vortec heads. Found on '96-'99 Chev trucks/suburbans. Awesome head. Can be had all day around here for $35.00 each at the "u-pull-it" yards.
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Old Jun 1, 2017 | 12:26 AM
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Those require the vortec specific intake and distributor to run correctly right?
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Old Jun 1, 2017 | 12:53 AM
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Intake yes...but you can make a non-vortex intake work by stacking gaskets.

Distributor, no. Plain old distributor will work.
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Old Jun 2, 2017 | 12:08 PM
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oem roller cam block or flat tappet cam? Hydraulic or mechanical lifters? inquiring minds need to know
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