Sorry, I was thinking of a different clearance, not piston head to cylinder
wall.
Shawn J. Loseke
1972 TR6
Fort Collins, CO
>===== Original Message From "Navarrette, Vance" <vance.navarrette@intel.com>
=====
> Harry:
>
> The short answer is no, you cannot get 0.060" over pistons.
>0.040" over is as big as they get.
> When you buy a piston set, you should get the clearance
>information with the piston set. The final clearance is obtained by
>honing, so you bore undersize and then hone to the final clearance.
>Bentley also has the final numbers you need to aim for if you need the
>information before you buy the pistons.
> If your block needs a 0.060" overbore, you will need to resleeve
>it or scrap it and get another block to use stock hepolite type pistons.
>
> If you are determined to proceed with the 0.060" overbore, then
>you can use pistons from another vehicle (Mazda 626 pistons have been
>used, as I recall) but they will need some machining to fit (ka-ching!)
>or go with some custom pistons (ka-ching! ka-ching!) from the likes of
>JE or Keith Black.
> Bottom line, doing a 0.060" overbore will add a lot of cost,
>whether you resleeve, use non-tr6 pistons, or go the custom route. For a
>street rebuild, a new block is much less expensive, unless you are
>trying to maintain a numbers matching car...
>
> Just my $0.0000002
>
> Vance
>
>-----Original Message-----
>From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
>Behalf Of Harry Hart
>Sent: March 11, 2005 10:45 AM
>To: 6Pack
>Subject: re:piston clearance
>
>My engine is at a machine shop here in Birmingham and I need to find
>out the
>recommended clearance for pistons? Also is it possible to find pistons
>that
>are 60 over?
>
>thank You
>Harry Hart
>1972 TR
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