440Kilmartin
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zero deck is key
I was thinking about that because if I remember right the piston sits in about .350... I am going to call a shop today to see about getting it bored 30 over and balanced. Anything else I should consider while there?440Kilmartin said:zero deck is key
MuscleCar91 said:I was thinking about that because if I remember right the piston sits in about .350... I am going to call a shop today to see about getting it bored 30 over and balanced. Anything else I should consider while there?440Kilmartin said:zero deck is key
CompSyn said:That's cool with the A12 lift-off hood combo you've got going on, 440s are hard to beat power per dollar. I do however appreciate the nostalgia of a nice 383 Road Runner or Super Bee that's actually retained the original 383. It's sort of rare when you consider how many have been converted to bigger cubed power plants.
BTW, what year is your 440? Wondering if it's a cast or forged crankshaft?
Or just stand it up and tap a counter weight with anything metal and listen to is ring. Music to my earssixgunrunner68 said:It's easy to tell,a cast crank will have a thin line of casting flash on the unmachined surfaces where the mold split.
Forgings won't.
Yeah I also thought that was the case because there would be no need for such a strong crank and the Id pad indicated it was a cast crank. I wa able to find a picture that compared the two and mine looked just like the forged crank. It had a couple stamped things on it unlike the molded cast would of had as well.CompSyn said:I think I heard that all cast cranks have the engine displacement casted on them e.g., 400, 440.
I took apart a 1969 440 non-HP motor before and the pistons were not dished like the ones in your pic. That's why I was thinking you had a later low compression engine with a cast crank.
MuscleCar91 said:pulled the crank out. I'm 99% sure it is a forged crank even though the id pad said it was cast... It has wide parting lines (Not narrow like cast) and it has stamped numbers. Now one thing I read was the dreaded rear main seal leak from reverse cranks due to the groves on the crank digging into the seal. Any idea which way the groves should be running?
ACME A12 said:MuscleCar91 said:pulled the crank out. I'm 99% sure it is a forged crank even though the id pad said it was cast... It has wide parting lines (Not narrow like cast) and it has stamped numbers. Now one thing I read was the dreaded rear main seal leak from reverse cranks due to the groves on the crank digging into the seal. Any idea which way the groves should be running?
That "E" you referred to in an earlier post on the engine ID pad is probably not the indicator for a cast crank. It is probably for the engine year - as in 1969. If your engine has a mid to late 1968 casting date then it is (most probably) a 1969. Here are the letter codes for the corresponding year for any MoPar engine.
A 1965
B 1966
C 1967
D 1968
E 1969
F 1970
G 1971
H 1972
J 1973
The chances that you have a marine (reverse rotation) crank are probably pretty slim...there are countless tips on rear main seal installation on here - just search - it will be fine.
Yep, get her hot tanked. Then get it crack tested and this will determine if you go any further with this block.george68hemirr said:ASK THE GUY TO BOIL OUT THE BLOCK BEFORE THEY DO ANY WORK TO THE BLOCK....THAT WILL ALL COME OUT