Rebuttal of the "Less Stroke/Cubes=Rev Faster" Argument

[DAVID GAGNARD]

Just had to go in the shop and check for myself....this is what I found using my handy/dandy/brandy new Berkley scale:

1969, Ford 302 OEM stock crankshaft---------40 lbs., 2 oz.
1969, Ford 351-W OEM stock crankshaft-------55 lbs. 7 oz.
after/market,forged Eagle 331 crankshaft------47 lbs. even

I would have thought the Eagle crank would have been a little lighter than the OEM 302 crank since the rod journals are drilled thru and thru were as the OEM cranks are not.....

Don't have any FE or big block stuff to check....

David

[CobraEd]

Originally Posted by Jerry Clayton

thanks for the idea of getting specs from Craigs List as the next time I need some bearing clearance or rod/main bore specs I'l have a new place to research---I bet Kieth and Barry are glad to find out about them also

No problem!

.

[silverline]

Originally Posted by RodKnock

Rick, all I would say is that most mortals, not Jay Brown, not you, not a few others, but mortals like me or Patrick, cannot tell the difference between a 468 (4.125" stroke) or 482 (4.25" stroke), as an example.

Also, I think Jay is making a much more global point, not just limited to his 585ci SOHC engine.

Just my opinion, but I think the everyday Joe or Jane Six-Pack is kidding him or herself, if they say they can feel the engine with the 4.125" stroke revving faster than the one with the 4.25" stroke.

I call BS on most. Jay has built plenty of non-SOHC engines too.

Yes, 10, 15 or 20 cubes more / less in the 470-490 CI range ... who can really feel that on the street in a light car?!

The 4.125 or 4.250 stroke debate ... take what you personally think is right and enjoy riding a cobra.