ZR-1 Net Registry Forums - Bought A 94 LT5 With Known Problem

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Re: Bought A 94 LT5 With Known Problem

I've not made much more progress on tearing down the engine other than my last post with pictures. I got my hands on a complete set of used '91 piston assemblies (pistons, rods, rings, pins, etc) and liners, which I planned to use to replace any damaged parts. Marc H. dealt me a set back when he told me of a piston & rod weight difference between the '91 and '94. The liners I have are usable. I will end up having to buy another piston(s) and rod(s).

My initial engine dis-assembly took place while the engine was still sitting on the shipping crate. I have since put the remainder of the engine on an engine stand for easier access to the bottom end. I have yet to dis-assemble the heads (valves, springs, etc). After a complete tear down and inspection, then replacing what needs to be replaced, cleaning every part to like new condition is my next goal...there are lots of inspirational clean engine pictures on the forum.

This engine is a spare, so I'm in no hurry. Quality time to spend working on the engine is just not available to me at this time.

One of our fellow forum members, (rhipsher), has my plenum and injector housings which are under going porting, and Jerry's Gaskets has provided me with all my gasket needs.

Re: Bought A 94 LT5 With Known Problem

yeah, he shut that thing right off after he seen it leaking coolant. With it getting as hot as it did I would check every mating surface on that block, and heads.

Milling will not bring the heads back true. You will wind up with a flat surface for the gasket, but could wind up with your cams binding badly in the heads. I would check them for tolerance, and if warped AND you want to save it/them have them heated and straightened, THEN milled. When you can buy spare heads for 500 apiece, I think that would be the route I would go.

Re: Bought A 94 LT5 With Known Problem

I have a full set of rods, pistons & liners removed from the 94 LT5 for my 402 stroker project. What do you need?