Thread: Connecting rods
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08-16-2007 03:01 PM #1
Connecting rods
Hello again guys/gals.
Well I have desided, after much debate, lol, that I will build a 383 small block for a truck. You guys have been instrumental in that decision.I think this would be a better place to start off at then some the exotic 350 I had planned lol. When I was searching for cranks (I chose Eagle) they recommend a 5.700" or longer connecting rod for their crank. Now I heard (thank you John Lingenfelter) that the longer it is the better, becuase you don't increase the stress on the trust side of the piston. Is that correct? Then something to the effect that with a shorter rod you form more acute angles on the crank journals causing uneeded stress on the piston and wrist pin. Did I get all that right? Hope I did it was a mouth full. lol.
Thanks,
-Chris
Whoops, here it is.
Chevrolet 400 Forged 4340 Steel Crankshaft
400 Main Journals, No Spacer Bearings Required
3.750'' Stroke (should I go longer since its going to be in a truck?)
5.700'' or Longer Rod Length
2.100'' Rod Journal
(do all 400 cranks have the 2.65 main journal diameter?)
2-Piece Rear Seal
Internal Balance
1900 Bobweight
You're welcome Mike, glad it worked out for you. Roger, it's taken a few years but my inventory of excess parts has shrunk a fair bit from 1 1/2 garage stalls to about an eight by eight space. ...
1968 Plymouth Valiant 1st Gen HEMI