a local used car dealer is selling an ex-cop car, that is powered by a LP-V8, I've not heard of a liquid propane fueled V8 for chevys.It is a 94' caprice (sorry if I spelled it wrong). the guy was too busy to show me what was under the hood. I think those cars were equipted with LT-1 and some with LT-4 ,not sure. Does anybody know about this engine?

 

The only propane run cars I've heard of used special carbs. I've never heard of an EFI one. Propane stinks like hell though. We have a propane forklift at work and its aweful to be around.

As for the cop car: LT-1 is the engine from the early 70s. The LT1 is the modern version. There was no LT4 offered in the Caprieces but it would be a virtual bolt in for a LT1. The LT1 in the cop car had iron heads(unlike the F-body and vette version) and was believed to flow better than the aluminum versions. They were rated at 260HP in these cars.

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
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Well, I know for sure there are cars with EFI running propane, butane or one of them funky gases. I know the Air Force has a bunch of cars, pick ups and even tractors running gas.
I also heard that it kills power on tractors. I have personaly driven 1/4 and 1/2 ton pick ups and didn't notice the thing run like a dog. It might have been down in power, but it wasn't like driving a 350 and then getting into a honda civic.
Rick

 

the octane is crazy on propane though, they might not have been set up to use it. i.e. compression ratio like 8.0:1 truck using 112 octane propane. UIt could probably take having 13:1 or something crazy like that. I saw a big block chevelle on TV running crazy compression because of the propane.

 

91,

The Caprice SEO vehicles in '94 all had LT1 or L99 engines. There was no generally available LT4 in a '94 Caprice.

There are eleventy-jillion Vortec engines arounf the world running on LP and LNG. They require a regulator, and evaporator, and special carburetor or fuel distibution. Propane burns much more cleanly and cooler than gasoline, and propane engines tend to last a lot longer than their gasoline counterparts.

F22 is correct - VERY correct. There are several shėtloads of government vehicles using millions of cubic feet of propane every day, from the armed services to the postal service. There is a little less power output from LPG at a given displacement and compression, but an engine built expressly for LPG can be built with a lot more cam timing and static compression, so the power levels can be the same with a little planning.

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Later,
Vader
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