wow.. didn't expect that.... and i assume forged crank being that old.... kinda wanna see a couple of turbos on there
Ummm this can’t be good
- Thread starter dukeboy440
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Yep, forged crank, rods and pistons. The bottom ends are STOUTwow.. didn't expect that.... and i assume forged crank being that old.... kinda wanna see a couple of turbos on there
That’s a well proven fact! Look how many of things swilled 98% nitro (sometimes mixed with hydrazine!) through an 8-71 and went multiple passes without failures. There’s a guy from the “gator country” with a boat load of National titles (and many others!) earned with the factory iron blocks of that era…
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Factory nickel iron blocks. According to motor trend some of the nitro cars were making north of 1500 hp on the stock forged cranks and rods.
Depending on just how deep I go into this, I might have the crank cut for big block Chevy pins and rods basically creating a 364 stroker with a corresponding bore
I had a '52 Imperial I wanted to put a 3-71 or 4-71 blower on but never happened.
The Marine Hemis had adjustable rockers. I knew a guy who paid almost 2 grand for my friend's 2 marine Hemis and that's all he took, he left the rest!
Chrysler was getting 180 Horsepower out the 331 Hemi and Cadillac was only getting 160 out of their 331!
The Marine Hemis had adjustable rockers. I knew a guy who paid almost 2 grand for my friend's 2 marine Hemis and that's all he took, he left the rest!
Chrysler was getting 180 Horsepower out the 331 Hemi and Cadillac was only getting 160 out of their 331!
Definately not a Baby Hemi. Early round exhaust port heads don't flow that well. Crank should be forged and hardened, Checkout Hot Heads research for solutions for the extended bell Hemi's. Hot Heads Research & Racing Early Chrysler Hemi Engine Parts Early Hemis are too cool.
Hartman-52
Hartman-52
If it's missing pistonies, it should have better gas mileage.Pistones? is that the French word for pistons?
Seriously, though, I bet all you have inside is a free spinning crank. No pistones, no connecting rods, no timing chain.
At least it isn't locked up. PLEASE keep us advised of the teardown AND the rebuild. I have never seen the rebuild of an early Hemi. Is it different than the later ones?
slayer
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There seems to be a bit of bad infomation in this thread reguarding early Chrysler Hemis. Yes the crankshafts and rods are forged, but the pistons are cast with steel inserts in the skirt area. The 331 heads are only good if you get the 1954 on up large port heads. The 1955 are considered to be the best flowing. The O/P looks to have a 1951 to 53 extended bell Hemi that has the small ports and valves.
There is a large wealth of information on the H.A.M.B. traditional hot rod forum on the Jalopy journal. Here is a link to there Hemi tech index.
HEMI Tech- INDEX
There is a large wealth of information on the H.A.M.B. traditional hot rod forum on the Jalopy journal. Here is a link to there Hemi tech index.
HEMI Tech- INDEX
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The 54 and LATER heads were. The 51 to 53 331 heads with the tiny round exhaust ports SUCK.
This ^^^^^
Just get a munched 392 crank and have it cut for your 331. 3.91 stroke and rod journals can be offset ground as well. Watch your big end rod widths when trying to use other makes of rods.
Notes thanks! Sadly, this project gonna be on hold for a bit now that I had my Cummins shake itself a part and have bearings for supper.
I know the feeling, but mine was wife, kids, then a crazy all consuming job. That project will keep.
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