Simple yes or no about the L98
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8th Gear
Joined: Jul 2018
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From: Clearwater FL
Simple yes or no about the L98
Old school guy here with halfway new school toy. Have the 1988 Vette with the stock L98 with aluminum heads. I believe the block is the first generation SBC but are they really the same as far as hardware? Example; if I wanted to do which most feel would be a mistake, and convert it to carburation, an Edelbrock and Holley set up off of my 1974 Camaro would work. Gear drive valve train with elimination of the knock sensor. Things like that....
Sorry if this seems like a stupid question but...
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I've got 240,000 miles on my '84, and my despised CFI still has its adjustments welded into position from the factory! I'd say GM was pretty confident about their design to WELD the thing, so as to discourage tampering! I'll bet you won't be able to do that with your four-barrel! My car starts good, runs good, and gets good mileage. What more could you ask for? (I'll admit that I have 'tampered' with the engine internals.)
Le Mans Master
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88 block I doubt will have provision for mechanical fuel pump. 86 last year of carbs. 87 revise block for roller. I can see the extra machining for fuel pump discontinued. The TPI fuel pump has too.much pressure (42+ psi) for carb even with regulator. You only need 5-7 psi in most cases. You would need different distributor also. Tuning the exsiting ECM might be a better option. Geardrives are not normally street equipment and would require ESC ( knock sensor) to be disabled(prom). What are your performance goals? 10.0 and 30 mpg is a dream not a goal. lol
Last edited by Kevova; Jul 20, 2018 at 03:30 PM.
Le Mans Master
Joined: Feb 2005
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From: Clearwater Florida
… AND , the L98 aluminum heads have the SAME intake manifold bolt angle as your early Camaro … the reality is that the C4 vette has a hood clearance problem … your intake and carb might fit but an air filter and housing may not …..
Team Owner
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2. Untrue. Volume would be the problem, not pressure. The pressure isn't managed by the pump, it's managed by the regulator, which you can change/modify or replace. It's true however that fuel delivery is something that does need to be addressed.
3. I agree. W/o all the sensors in place, ECM won't work. W/o the ECM working, timing won't work. Need a mechanical/vacuum HEI distributor.
