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| Author: | jacobgiles [ Oct Tue 06, 2009 5:07 pm ] |
| Post subject: | if i have |
a 4.75 crank and a 10.2 deck height block and a piston that has a 1.12 CH what length rod do i need? 6.600 or 6.700? |
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| Author: | bbnova [ Oct Tue 06, 2009 9:09 pm ] |
| Post subject: | |
10.2 block subtract 2.375 for the stroke is 7.825. 7.825 subtract 1.12 CH is 6.705 If it is a aluminum rod you need to be say .020 in the hole, so.... 6.705 subtract 0.020 is 6.685 long rod. Hope this helps. |
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| Author: | BT Race Cars [ Oct Wed 07, 2009 9:46 am ] |
| Post subject: | |
bbnova wrote: 10.2 block subtract 2.375 for the stroke is 7.825.
7.825 subtract 1.12 CH is 6.705 If it is a aluminum rod you need to be say .020 in the hole, so.... 6.705 subtract 0.020 is 6.685 long rod. Hope this helps. SHOW OFF !! 
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| Author: | bbnova [ Oct Wed 07, 2009 10:49 am ] |
| Post subject: | |
Done it once or twice.....
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| Author: | jacobgiles [ Oct Wed 07, 2009 3:15 pm ] |
| Post subject: | |
you got some 6.685 rods laying around
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| Author: | jacobgiles [ Oct Wed 07, 2009 3:16 pm ] |
| Post subject: | |
im not going to run a aluminum rod, im just gonna use a h beam or something that is off the shelf. the piston recomended a 6.600 rod and i knew that wasnt rite. |
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| Author: | bbnova [ Oct Wed 07, 2009 9:19 pm ] |
| Post subject: | |
As a matter fo fact, I do.... GRP's jacobgiles wrote: you got some 6.685 rods laying around
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| Author: | bbnova [ Oct Wed 07, 2009 9:21 pm ] |
| Post subject: | |
So you may get away with a 6.700 long rod then. I would talk to your piston maufacturer though... jacobgiles wrote: im not going to run a aluminum rod, im just gonna use a h beam or something that is off the shelf. the piston recomended a 6.600 rod and i knew that wasnt rite.
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| Author: | jacobgiles [ Oct Thu 08, 2009 7:39 am ] |
| Post subject: | |
i called world products (mahle makes this piston for them for there crate engine) he gave me the part number for the rod they use. its a 6.7 |
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| Author: | bbnova [ Oct Thu 08, 2009 12:08 pm ] |
| Post subject: | |
What head gaskets??? Spray??? RPM???? Chevy head or big chief??? Carfull when chosing your cam since you are going with a off the shelf piston... |
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| Author: | jacobgiles [ Oct Thu 08, 2009 8:03 pm ] |
| Post subject: | |
my block has O rings so im not really sure what head gasket to use. it will not see any nitrous, the piston specs are: Bore (In) 4.600 Stroke (In) 4.750 Rod (In) 6.600 Pin .990 Comp Hght 1.120 Weight 528g C/R @ 0 deck 10.4:1 Crown -6cc i am using a conventional head. this isnt going to be a max effort motor, i want it to be pump gas friendly also |
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