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A460 Block zero decked. Pistons out 0.0515

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A460 Block zero decked. Pistons out 0.0515 Empty A460 Block zero decked. Pistons out 0.0515

Post  dcon on September 19th 2019, 12:58 pm

Got my engine back from builder/machine shop and took a head off. Looks like the piston is out of the deck 0.0515. Acceptable? Crower 4.3 crank, crower 6.8 rods, TFS A460 heads.
A460 Block zero decked. Pistons out 0.0515 P110
A460 Block zero decked. Pistons out 0.0515 P210
e?

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Post  gt350hr on September 19th 2019, 2:36 pm

The head gasket better be .090 thick

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Post  dcon on September 19th 2019, 2:38 pm

Would you guys run this? Doesn't seem like a good program.

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Post  dfree383 on September 19th 2019, 2:56 pm

It won’t know the difference as long as you have sufficient piston to head clearance
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Post  jpierce55 on September 19th 2019, 3:07 pm

I would protest some to the machine shop myself.

I would recommend a 2nd meausurement wiith depth gauge or dial indicator on magnetic base. With the 2nd, use a straight edge for piston stop, zero the indicator once level, and measure the travel to the top.....but thats just me. It would me more accurate than a vernier.

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Post  dcon on September 19th 2019, 3:26 pm

The gaskets I was told to purchase are Cometic, keep in mind the block is o-ringed. 0.080. SS MLS 5. It does not look like it really seals up.

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Post  Mark O'Neal on September 20th 2019, 1:04 am

If you want to run the o-rings, you might want to run copper wire instead of stainless.

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Post  gt350hr on September 20th 2019, 11:48 am

O rings and MLS gaskets are not a good match.

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Post  rmcomprandy on September 21st 2019, 11:34 pm

If the piston is out of the hole ... it is not ZERO decked.

"O" ringed blocks are usually meant to use solid soft copper head gaskets of whatever thickness needed.

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