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Converting Gen V 454 to Gen VI 502

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Converting Gen V 454 to Gen VI 502

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Old 08-10-2003, 10:01 AM
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Dennis
Thanks for the tip on the JE rings On the 454 rebuild last year I had trouble figureing out the shallow oil ring land on the Gen V 454

I am still not clear on the crank. I understand the Gen VI 454 and 502 crank are NOT interchangeable, but, can I use the Gen V 502 #14097044 crank in a Gen VI block?

I plan on having my machinist balance the rotating assembly.

Last edited by RickR; 08-10-2003 at 10:05 AM.
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Old 08-10-2003, 03:21 PM
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Originally posted by rws
You will want to find a Gen 6 502 Block casting # 10237300 If I was going to spend the Money for new pistons ,crank I would spend a few more dollars and build a 540cu. 4.250 stroke 6.385 long rods and off the shelf pistons are available.

Rob
Whats the difference between that block and a 10237292 block? I am looking into using this block with a 4.500 bore and 6.136 Crower Sportsman rods, JE pistons....

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Old 08-10-2003, 04:32 PM
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Scott B,
It is the same Block! 10237292 is the GM Part # .
10237300 is the casting # that is on the block near the bellhousing mount.

Rob
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Old 08-11-2003, 08:36 AM
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In regard to your distributor gear I would go with the new composite gear from comp cams (cheaper thru summit racing though). Many aftermarket roller cams are billet cams and have the gear drive for the distributor cut in them....they'll eat up stock distributor gears in a couple hours....and if you switch to the bronze gears you will only get 80 hours out of them before replacement is required. Just go with the new composite gears right off the bat and they'll work with any type of cam that you use now or later.
 
Old 08-11-2003, 04:20 PM
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Thanks RWS! Nothing worse than having a nice box here, and then seeing a casting number that didn't match

We now take you back to our regularly scheduled programming..

Scott B
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Old 08-05-2009, 12:31 AM
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Originally Posted by Dennis Moore
The steel cankshafts built for the one piece rear main seal Gen V and Gen VI look the same but are not interchangeable, the 454 crank is balanced different than the 502.
The cast iron 454 crankshaft is balanced different than the steel 454 and uses a different flywheel (only on the Gen V and VI).
Sincerely
Dennis Moore
hi Dennis i recently purchased a 95 crownline 22.5 br without an engine,it had a 7.4GL(genV) volva penta dp-s.i got everything but the long block(oil pan, v/c covers, oval port intake/w carb, harmonic balancer, flywheel and all acessories).... i cam across some internal parts i could not pass up from a GEN VI 7.4..steel crankshaft it looks to have been balanced due to stamping on counterweight,7/16 dimple rods,forged pistons,factory roller cam w/roller lifters,088square port heads,and GM square port alum.intake,less block) all for $200. the guy said it was a 2001 low rpm dyno engine from gm. i later found a low mileage GEN VI block to install all the above internals in. now the engine is in the boat and running with a different carb of course, but the engine has a viberation, i thought it was in the u joints so i removed the upper part of the outdrive along w/ujoints and its still there.i did use the balancer and flywheel from the GEN V(cast or steel crank???) on the GEN VI, with a steel crank. i had all the casting # to everything but my washer ate them any help would be great THANKS JOE
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Old 08-05-2009, 07:40 AM
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I have a stock crank and cam out of a 1999 502 that I am selling.
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Old 08-05-2009, 03:20 PM
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I have a set of 4.53 spr pistons with 10 hours and good rings. Would have to take the 502 block to 4.5 .030 over bore, but they are very nice forged pistons with low hours.
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Old 08-05-2009, 03:56 PM
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Not sure if said.
You will need a electric fuel pump, Different remote oil adapter, Flywheel.
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Old 02-05-2010, 06:38 PM
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Default gen v and gen 6 harmonic balancer comppatability

Hello, I am new to the forum and have a harmonic balancer question.
Can anyone please tell Me if a harmonic balancer part # 10216452
will work on a gen V cast crank motor?
I think that part # is for a gen VI motor but I am not sure if they are compatible.
Any and all help is greatly appreciated.
Thank you
Kurt Zimmie
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