Bought A 94 LT5 With Known Problem - Page 3 - ZR-1 Net Registry Forums

Kb7tif · 11-29-2009

^^

billybaloneey · 11-29-2009

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.

todesengel · 01-03-2011

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.

Jagdpanzer · 01-03-2011

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

11-29-2009	#21
Kb7tif Join Date: May 2009 Location: S Nevada Posts: 352	Re: Bought A 94 LT5 With Known Problem ^^ __________________ 1995 Convertible Supercharged Auto 1974 454 550hp (avatar car) On the blocks- -Scharger install ! 1992-Zr-1 Sold. Watson Headers Ported Plenum, Housings Random tech cats Fidanza Flywheel Chipped, Relocated Mat Woods 165 stat Borlas, Straights 1996 Lt4 Sold 1994 Lt1 Sold 2004 Z06 Sold AKA** Illenema

11-29-2009	#22
billybaloneey Join Date: May 2008 Location: Mauriceville, Texas Posts: 179	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. __________________ Clint aka billybaloneey '94 - C4 ZR-1 #445 - Black/Black '05 - C6 silver/black 6sp '85 - C4 white/graphite (almost done) automatic '78 - C3 silver/black (a work in progress) automatic

01-03-2011	#23
todesengel Join Date: Apr 2010 Location: O'Fallon, Mo Posts: 738	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.

01-03-2011	#24
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,661	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?