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| Cubic inch | Login/Join |
| DRR Trophy |
► (4.32 / 2)^2 * 4 * pi * 8 = 469.0372699 Stan | |||
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DRR S/Pro |
I said it early in this thread and I will say it again, .070 over with a stock 454 GM block is just asking for cracked cylinder walls | |||
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DRR Pro |
^^^THIS. Stan for the W. Dan "Jim" Moore Much too young to feel this damn old!! | |||
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| DRR Trophy |
I agree with big Steve. Ive had them crack at .060 when the block had 7.4L on it. | |||
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DRR Sportsman |
There are a lot of .100 over 505's out there that don't agree with you, Big Steve. I'd bet they're probaby not leaning on them that hard,though Organized people are just too lazy to look for their $h!t. | |||
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DRR Sportsman |
I've got a .070 over 454 in my Vega, but the block is poured to the bottom of the water pump holes. Tim West "Wild Wild West" Racing mickeythompsontires.com tciauto.com compcams.com www.motorsportsinnovations.com | |||
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| DRR S/Pro |
I cracked 2 blocks that were bored .070 and larger but neither were filled with concrete. I bought a Dart big M block that was originally 4.350 and later 4.600 and still running that same block 13 years later. Not filled eitherThis message has been edited. Last edited by: Big Steve, | |||
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DRR S/Pro |
I bet your machinist loved boring that 1/4” out of that block. ____________________________ 2017 and 2018 Osage Casinos Tulsa Raceway Park No-Box Champion 2018 Div4 Goodguys Hammer award winner | |||
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| DRR Trophy |
I ran a old 289 casting stock block at .125" over with a 1/4" stroke crank for about 6 years never cracked a cylinder ended up with cracks in the deck then went to a dart block | |||
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| DRR S/Pro |
Block did weigh a whole lot less when he was done | |||
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| DRR Trophy |
Been running a .100 over block well over 10yrs that started as a 477,now currently a 505.....not poured..no problems..... | |||
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DRR Pro |
Cubic_Inches = PI() * ( Bore / 2 )^2 * Stroke  Crew Chief Pro 7.980. It is not an evolution in Crew Chief Software, it is a Revolution in Crew Chief Software Drag Racing Software and Professional Weather Stations(309) 688-2990 Visit us on the web at http://www.crewchiefpro.com Are you a Producer or a Parasite? Author of the book, "But Who Will Save The Children." | |||
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DRR Sportsman |
And we wonder why schools are at the bottom of the list for math. Bubba engine science: if you bore a block far enough the ensuing flex will allow the block to move and not crack.  Dave Koehler - Koehler Injection - http://www.koehlerinjection.com Fuel Injection - Nitrous Charger - Nitrous Master Software - Balancing 99% of fuel injection problems are electric. | |||
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| DRR S/Pro |
454 block + .100 bore (not filled) with a .250 stroke crank, = 506 in the motor home I tow with for 7+ years no problems. Bob | |||
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