Chevy High Performance – October 2019

(やまだぃちぅ) #1
18 | Besides the $250 we spent to purchase the engine from the junkyard, our
first real expenditure was a hundo to have the crusty block baked and blasted.
No machine work has been done to it yet, but it looks respectable and allows for
better inspection. Things are finally looking up.

19 | With the
cylinder bores
finally clean,
we can get a
better look at the
damage done
by all that water
in the block.
Two cylinders
had severe
pitting, but we
are still hoping
an overbore of
0.060-inch will
clean it up. We’ve
heard that if you keep the engine naturally aspirated (forced induction puts a
lot of stress on the cylinder bores) you can sometimes get away with an 0.080
overbore, but if that’s necessary, we’d prefer to just install some new sleeves.
We’ll dive deeper into the inspection and machine work in the next installment
and let you know what we find out. Keep your fingers crossed. We know we are.

17 | The camshaft,
however, might be
salvageable. The rust
mostly wiped right
off, and the lobes
all seem to be in
good shape. We will
check it more closely
later, but for now
we have our fingers
crossed. With just
196/201-degrees
of duration and
0.467/0.479-inch lift,
a cam swap down the line will unlock a lot more power, but for now we’ll try to
keep it just to make a baseline.

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