A460 Block zero decked. Pistons out 0.0515
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gt350hr
dcon
6 posters
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A460 Block zero decked. Pistons out 0.0515
dcon 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.
e?
e?
dcon- Posts : 19
Join date : 2009-11-21
Re: A460 Block zero decked. Pistons out 0.0515
gt350hr September 19th 2019, 2:36 pm
The head gasket better be .090 thick
gt350hr- Posts : 662
Join date : 2014-08-20
Location : Anaheim , CA
It is... but
dcon September 19th 2019, 2:38 pm
Would you guys run this? Doesn't seem like a good program.
dcon- Posts : 19
Join date : 2009-11-21
Re: A460 Block zero decked. Pistons out 0.0515
dfree383 September 19th 2019, 2:56 pm
It won’t know the difference as long as you have sufficient piston to head clearance
dfree383- BBF CONTRIBUTOR
- Posts : 14851
Join date : 2009-07-09
Location : Home Wif Da Wife.....
Re: A460 Block zero decked. Pistons out 0.0515
jpierce55 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.
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.
jpierce55- Posts : 111
Join date : 2009-08-23
Gaskets
dcon 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.
dcon- Posts : 19
Join date : 2009-11-21
Re: A460 Block zero decked. Pistons out 0.0515
Mark O'Neal September 20th 2019, 1:04 am
If you want to run the o-rings, you might want to run copper wire instead of stainless.
Mark O'Neal- Posts : 286
Join date : 2009-08-12
Re: A460 Block zero decked. Pistons out 0.0515
gt350hr September 20th 2019, 11:48 am
O rings and MLS gaskets are not a good match.
gt350hr- Posts : 662
Join date : 2014-08-20
Location : Anaheim , CA
Re: A460 Block zero decked. Pistons out 0.0515
rmcomprandy 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.
"O" ringed blocks are usually meant to use solid soft copper head gaskets of whatever thickness needed.
rmcomprandy- Posts : 6157
Join date : 2008-12-02
Location : Roseville, Michigan -
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