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From the link WVZR-1 posted, the cylinder head casting number 10125320 points to a 94-96 B-Body LT1 350 cid engine. There is some interesting information in that link that would be worth reading. Also, the water pump on the engine is from an Impala.
If this is the engine you bought, it's pretty clearly an LT-1, and likely one from a Camaro (if you are lucky). Iron heads aren't Corvette parts on LT-1s.
That's it - took that picture in my garage yesterday.
Water pump was not working when we picked up the Camero. We purchased what would fit. The one we took out did not have the connections sticking out.
One that came off looked like this.
Been looking at prices. If I use the heads and intake; the 383 stroker looks like the ticket. I'll need; crank, pistons, rings, rods, bearings and cam, bearings, roller rockers, rods, springs, valves and gasket/seals.
Anyone suggest a kit or two?
Interested in a smooth idle, pump gas and low/mid end torque.
Do I need to mod the intake? Other than grind and polish for flow? and program chip?
You will certainly need a retune/chip flash. Wouldn't be a bad idea to port the intake/heads if you are going super high performance. The stock stuff asnt bad but if you're going with a radical cam and wanting high rpma I would have them cleaned up, if I wasn't going to replace them.with better units.
I am NOT a fan of Eagle anything. I don't care what people say, I have seen a few beak up in 2k miles under normal street use and yes, they were build by competent people. The cranks broke in half.
350 hp is easily attainable with a few simple things. Clean up the heads/intake, a decent cam, long tube headers. That should get you pretty close. If you want more I would do a 383 kit. good luck and keep us posted.
btw, if you keep the optispark please investigate a how they get ruined from a leaky WP. I'm not fully sure about it other than the later yrs have a vent. Maybe there is a shield kit or something you can add (or make your self)
I am NOT a fan of Eagle anything. I don't care what people say, I have seen a few beak up in 2k miles under normal street use and yes, they were build by competent people. The cranks broke in half.
Do you know if those crankshafts were cast or forged? It is my understanding that cast Eagle crankshafts are garbage, but the forged ones are good.
They were cast. I am a firm believer that if a company can't make a decent cast crank (I have build a few small blocks with cast cranks and never had an issue) I certainly don't want their forged crank.
Water pump was not working when we picked up the Camero. We purchased what would fit. The one we took out did not have the connections sticking out.
One that came off looked like this.
Looks like every thing to ID the engine in on this site. Very good.
The pic in the link shows it to be a Camaro/Firebird water pump. But as you found out, any of the three versions will bolt on to the block. The cylinder head casting number will be the key to what model car the engine came from.
If this is the engine you bought, it's pretty clearly an LT-1, and likely one from a
Camaro (if you are lucky). Iron heads aren't Corvette parts on LT-1s.
Iron heads are not OE for the Z28 LT1 they are Aluminum.
PS the Alternator, Belt routing is a positive indication this LT1 was originally installed in a Impala OR similar car. Also this block will not have the stronger rib supports on the front and rear "china wall"
Also a support rib to the starter flange ear.
Correction it appears the Z28 has the stronger block.
Both of my 94 vettes do not have the support ribs.
My 93 Z28 block. Now my 383 vette block
Last edited by THE 383 admiral; Aug 22, 2015 at 10:36 AM.
Been doing a lot of research on this forum. The one certain thing I have learned is that I don't know anything about engines
I know how to rebuild an engine, I know how to trouble shoot and repair an engine but I have learned how little I know about why they work under various conditions. Suppose my knowledge is how they work, not why they work.
OK, its done
Decided to go back stock (almost); used an LT-4 cam.
new: standard bearings, 30 over pistons, rings, roller cam, rods, springs, lifters, timing chain and oil pump. Resurfaced heads and manifolds, magnaflux surfaces and ground valves, replace guides.
Also, the water pump on the engine is from an Impala.
good luck and keep us posted.
