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#1
05-21-2021, 08:18 PM
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Rotating Assembly
I see that Molnar does not make 3.25 strokers.
Is Ohio crank the next best choice? Can you get any dish you need or are there standard dish cc's you "just"have to work with? It will probably be: 4.18x x 4.25 - 72cc al. heads. TIA. |
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#2
05-22-2021, 12:06 PM
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Are you building to a hp level that calls for a steel crank?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#3
05-22-2021, 08:01 PM
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550-600 hp.
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#4
05-22-2021, 08:17 PM
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I think I would go with a Scat crank. My experience is that the finished machining is closer to specs than the Ohio cranks
__________________
62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs |
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#5
05-23-2021, 09:50 AM
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i used a eagle forged crank from butler supplied in their kit with ross 14cc dish pistons. machine shop said it was very nice & didnt need any work prior to install.
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#6
05-23-2021, 10:58 AM
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In 2018 the Crower 4.250" billet crank in my current 505 engine developed a crack. To replace it I bought a SCAT 4340 FORGED STEEL STANDARD WEIGHT CRANKSHAFT thru Paul Knippen. Good service and great price.
No issues or special prep necessary for installation. .
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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