Re: 4.75" stroke RB?
[Re: ZIPPY]
#364356
07/02/09 12:03 PM
07/02/09 12:03 PM
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Joined: Apr 2007
Posts: 871 WA 98043
thecarfarmer
super stock
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super stock
Joined: Apr 2007
Posts: 871
WA 98043
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How about a small base circle cam? I think that's how the SBC guys go when they start trying to pack a bunch of arm into a mouse block.
-Bill
Seduce the attractive, and charm the rest.
******
489 C.I.D., roller cam, aftermarket heads, tunnel ram, stock '54 Dodge rear axle assembly: which of these doesn't belong?
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Re: 4.75" stroke RB?
[Re: thecarfarmer]
#364357
07/02/09 12:24 PM
07/02/09 12:24 PM
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Joined: Aug 2003
Posts: 1,416 Lake Charles,Louisiana
BILLYJAY
pro stock
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pro stock
Joined: Aug 2003
Posts: 1,416
Lake Charles,Louisiana
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I have the OHIO crank-4.75 (8 Bolt ONLY)and have a reg cam location Indy Maxx block..First of all the Crank was spot on..everything checked out fine..i also had them cut .180 off the OD of the counter weights when i purchased it.. it is a chevy rod journel..(2.20) there was a small amount to be clearanced off the rod shoulder,mainly the rod bolt.. i have about .100 of clearance between the rod shoulder and the cam..what i did to help with clearance was to stay smaller on the cam profile and stepped up on the rocker ratio..but donr get me wrong..i do have room to grow and if needed later i will clearance again since i really didnt take that much off of them..i will post pics of what i did..my cam profile with the 1.5 was .700/.715 roller now with the 1.6 rockers i am .747/.765 and that is plenty to make my heads flow and i still have .100 clearance...my block was clearanced for a 5" stroke but dont hink i will ever need it...
Last edited by BILLYJAY; 07/02/09 12:25 PM.
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Re: 4.75" stroke RB?
[Re: ZIPPY]
#364367
07/03/09 08:33 AM
07/03/09 08:33 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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for a street type package you should consider using a 6.800 length rod,leaving approximately a 1.55 C.H. the crankshaft should already have cam cut counterweights (not round) to allow the shorter rod. that will give you longer service life and a very stable piston and ring pack for long term street use.
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