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04-15-2012, 12:20 PM
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#1 |
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FNG
Join Date: Apr 2012
Location: waterford
Posts: 5
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any one have an old Jahn's Piston book
Dose any one have a old Jahns piston book? I have a set of pistons and want to know what they fit.
Box has Jahn's Racing pistons, 8-1105-h-rp-std 2 1/64 def 4 1/8. it also has oldsmobile on the side of the box. Can any one tell me engine size and compression ratio? I think it is a 371 Olds |
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04-15-2012, 12:25 PM
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#2 |
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Old School HAMBer
Join Date: Nov 2009
Location: Michigan
Posts: 11,484
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Re: any one have an old Jahn's Piston book
Got calipers???.... Check the od and compression height from the wrist pin centerline....
__________________
***** God Bless the U.S. ***** |
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04-15-2012, 01:21 PM
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#3 |
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FNG
Join Date: Apr 2012
Location: waterford
Posts: 5
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Re: any one have an old Jahn's Piston book
4.125 bore, compression height 1.890 plus .275 half dome
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04-15-2012, 06:08 PM
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#4 |
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Old School HAMBer
Join Date: Feb 2009
Location: phoenix
Posts: 2,944
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Re: any one have an old Jahn's Piston book
8 probably stands for no. of cylinders and in one of my old catalogs it lists 1105H as: 1957-58 Oldsmobile V8-high compression with 21/64 deflector
bore sizes 4, 4 1/16, 4 1/8 compression ratios 10.5:1 57, 11:1 58 |
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04-16-2012, 07:46 PM
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#5 |
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FNG
Join Date: Apr 2012
Location: waterford
Posts: 5
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Re: any one have an old Jahn's Piston book
Thanks for the info.
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04-15-2012, 07:08 PM
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#6 |
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Grenade Inspector
Join Date: Jul 2009
Location: broadway nc
Posts: 179
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Re: any one have an old Jahn's Piston book
I got this info out of my first Jahns catalog and never forgot it Bore x Bore x Stroke x .785 x number of cylinders= cu.in
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POWER IS GOOD,MORE POWER IS BETTER,TOO MUCH POWER IS JUST ENOUGH!!! |
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