winginit

I bought a stroker engine that is suppose to have a scat stroker crank , what do you think , is this a Scat crank .

andrewmp6

I would find a casting number on it and talk to http://www.scatcrankshafts.com/

winginit

I may do that thanks

winginit

This crankshaft 4 counterweights , the scat 9000 crank I believe, has 6 counter weights.

andrewmp6

Scat can tell you for 100% if its theirs or not,It looks like a oem crank to me but i never seen a scat jeep one to tell the difference.

Fred/N0AZZ

You would think if they had installed a Scat crank the rods and pistons would be upgraded also IDK. I used some Scat rotating assy's years ago then switched to Eagle then Crower, I have no ides what is available for a 4.0 engine.

MoparNJeep

Well to run a stroker you have to space the stud girdle up .200 roughly to clear rods. It appears to be spaced up from last picture. Also you can use stock rods from a 4.0 which require a shorter piston pin height. Also know as a long rod stroker. Or you can use 4.2 rods for short rod motor

andrewmp6

Fred some men like to brag about size lol,But im with you if in doing it im doing i right not cutting no corners.

Fred/N0AZZ

No Scat made an excellent very lightweight 355 rotating assy. that I used in several dirt track cars that were limited in ci., very fast revving engines. That class pumped the engine to check for ci. at the end of every race to the top 5 places so no cheating there