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Any 88 Or 89 Mm Piston Alternatives For Stock L28 Crank And L28 Rod Combo?


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I need to build a motor for Memphis and don't want to do the stoker yet. I have a few blocks that could be over bored.

I recall some mention in the past about chevy pistons that work with over bores?

Anyone know of possible solutions?

Cast hypereutectic pistons are fine for this one.

Edited by Blue
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Thanks again all!

I think I found something:

post-6852-0-59435500-1425766777.jpg

Piston pin is ~ 1.2mm bigger in diameter so rods will need boring or existing pin sleeved.

The piston bore is 89mm.

The compression height/pin height is 38.99mm

Piston to Head clearance is ~0.32mm so it needs another .07mm off the pistons.

It should have a good squish if I can find a 1mm X 89mm gasket.

post-6852-0-76914700-1425766903.jpg

post-6852-0-59435500-1425766777_thumb.jp

post-6852-0-76914700-1425766903_thumb.jp

Edited by Blue
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Don't know about those Steve..........I guess he wants a block to convert to a stroker later. Swap in 240Z 9mm rods, stroker crank and 240SX pistons and you're in business after Memphis. Biggest I've ever gone on the L28 is .040 over ( 1mm ). I've never built a Stroker.......I guess it should be on my "Bucket List".

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