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August 03, 2003
Brad...
Those sleeves are machined to a press
fit, just like press fit piston wrist pins. So
I don't think they should be movin' before
the pistons do, as in your case, but I'll
let Gerard, Frank and the more experienced and "current" engine guys
speak for me..they know a lot more
about it "hands-on-wise" than I do.
The only disadvantage of a "sleeved" block as far as I know is in the
area of
heat transfer, wherein the sleeved
application is at a disadvantage in this
respect.
The CC blocks are of the stronger variety
(as you already know) so I don't see a
+.020 overbore presenting any problem
in terms of block flex. If anything, "squaring" the bore a bit will
allow for
easier "revability" (nice word, eh? think
I'll coin it!:) toward the top end.
These came 8.9-1 (HC model) stock so providing you're taking min. off
the head,
you should end up with
with no higher than 9.5-1 and a very
"peppy" 1098, still compatible with today's
unleaded premiums, I would think, without
having to limit ignition total advance. If
anything, you might need a sligtly colder
spark plug over "stock", maybe.
The 1098's do have a silky smoothness
to them for sure. Not the most powerful
but certainly the smoothest, IMHO.
Cap'n. Bob
'60 :{)
PilotRob@... 24071
Posted on August 3, 2003 04:51 PM
Posted to category(s) Carburetor | Cylinder Head | Engine (external) | Engine (internal) | Exterior | Ignition System | Restoration | Tuning
