I Have a 1979 C3 running a 1986 L98 TPI engine with aluminum heads, I do not trust the bottom end on the L98. I also have a GM crate engine 10066036 with bad heads, but a good bottom end, 160 compression on all eight cylinders. Would putting my aluminum heads, TPI fuel system, and computer controlled HEI, on the crate engine work? I imagine my compression ratio would be a lot higher. Would the cam work? Will my 700R4 bolt to it? Would this setup be good, bad, or ugly? The car will be used as a cruiser.

This seems to be the motor I have.

GM Goodwrench 350ci/260HP Engine & Packages

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Specifications
4-bolt main with 2-piece rear main seal
Cast iron crankshaft
LT1/LT4 powdered metal connecting rods
Cast pistons (dished)
Hydraulic flat tappet cam (.383''/.401'' and 112° lobe separation)
Cast iron cylinder heads with 76cc chambers
8.5:1 compression ratio
Block is compatible with left or right side oil dipstick (Requires Plug for Unused Side - Plugs are Included)
4-quart oil pan
Timing tabs for a 6-3/4'' or an 8'' balancer
Recommended spark plug: Accel #111-0574-4 or any spark plug with 14mm .460'' reach, 5/8'' hex, tapered seat, projected tip

Zorro.

 

I put some L98 zz4 heads with a .028 head gasket on this engine gives you about 10 to 1 ish compression.I used a carb I dont know about your fuel inj I think it work with a fuel inj friendly cam

 

Will work fine but I would upgrade the cam to match your new compression.

 

Thanks guys. I guess I will start learning about fuel injection cams.

Zorro