Here’s a block you don’t see everyday

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as said above lots of folks just run a ford size reamer into worn chevy lifter bores, a little brake cylinder hone and use FORD lifters
however bore alignment ends up all over the place and there goes you cam timing
why not ream to MOPAR size lifters in your chevy?
Because you have to narrow some cam lobes- some do this but you have to be in a cheating class to make it worth it
can't do that with a MOPAR
and to do MOPAR right requires some expensive tooling that aligns the lifters with the crank to cam centerlines
and sometimes you have to realign the cam tunnel (after you've done the line bore)
so just reaming and driving in sleeves can be done cheap and would work on a leaking small cam build (might be cheaper to find a different block)
doing it right is expensive
used to have .005 oversize lifters available which could be honed to fit
 
been there- done that but not on SBM had to find lifters and check the oil bands
there are also even harder to find larger lifters
 
Duane said:
Is there a big "X" cast into the passenger side front?
My current build is also an X block. They are still around.
Mine was brand new never bored from the rough 318 bore size.
Click to expand...

Lucky you. They are hard to find, especially still rough bored.

I got lucky and paid 800 bucks for mine.
 
4.155 X 4.00 = 433.89

Hummmm

4.155 X 4.18 = 453.42

HUMMMMMMM

4.155 X 4.25 = 461.01

YEAAAAA BABY!!!!!
 
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