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#1
08-27-2009, 09:34 AM
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ENGINE COMBO
Has anyone used the 4.75 crank in a 400 block? I'm thinking on doing a 30 over 400 with a 4.75 crank on pump gas (514 cu) !
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#2
08-27-2009, 09:38 AM
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Seems to me Jim Zeek is running a simular combo...thinks it a 506..
He does post on here...
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 ECM member. 2008 Outlaw Pontiac Drag Series Champion MANDRA Do it now fool! Life is short. 69 Grand Prix/3163lbs / IAII 535 w/ Tiger heads by Gaydosh....9.35@ 144 so far..  through mufflers. 1.26 60'. Going back to track with pump gas engine.... My 60 Ventura retired to street/strip duty.. |
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#3
08-27-2009, 12:18 PM
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I can`t see any problem other than The must of 4 bolt steel main caps with studs( which means aling hone time) filling the block to the freeze plugs and keeping the revs to 6k or less should keep the factory block intack.
__________________
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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#4
08-27-2009, 12:20 PM
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Wait! I take that back, I do not think that the rods with that stroke will clear the block even with doing as much grinding as much as you can before you hit water!
__________________
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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#5
08-27-2009, 03:31 PM
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i thought there was a guy on ebay selling 400s with 4.75 strokes, it coulda been 4.5 too tho. its been awhile since i looked there. one things certain, you should beable to pull stumps at idle with it
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#6
08-27-2009, 03:57 PM
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Butler offers a kit to put a 4.5 crank in a 400, but no 4.75. That should tell you something.
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