Local tuner needed for an 8.1L 496
03-23-2010, 03:59 PM
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Burning Brakes
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Local tuner needed for an 8.1L 496
Hey guys, i just got done putting an 8.1L 496 motor in to a 55 chevy car. I'm looking at possibly sticking in a roller cam from a regular big block, but it changes the firing order back to the old style. Can any shops tune for the new firing order? I have not been able to track down a cam maker for these newer motors. 
03-23-2010, 04:24 PM
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St. Jude Donor '08
Hey guys, i just got done putting an 8.1L 496 motor in to a 55 chevy car. I'm looking at possibly sticking in a roller cam from a regular big block, but it changes the firing order back to the old style. Can any shops tune for the new firing order? I have not been able to track down a cam maker for these newer motors.
Last edited by RichieRichZ06; 03-23-2010 at 08:32 PM.
03-23-2010, 05:16 PM
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St. Jude Donor '11
Is this fuel injected? Is it using a late model computer? Or is it carburated?
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03-24-2010, 01:25 AM
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Burning Brakes
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It is fuel injected, out of a 2001 3500 HD. Drive by wire. Rich, about the crank being changed i do not believe so? But i sure could be pissing in the wind, which is why i wanted to talk to a tuner before doing anything.
03-24-2010, 02:46 AM
#5
Race Director
Rich - Old BB order is 18436572 - 8.1 is 18726543. So 360* swaps. Should be fine as long as the cylinders are programmed to fire at the right time.
03-24-2010, 03:21 AM
#6
Drifting
03-24-2010, 08:32 PM
#8
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