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Old 12-25-2012, 09:37 AM
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496 engine build

I have a 496 bbc engine. that was a propane engine before i took it out of my truck. I am putting this engine in a 92 foxbody mustang and wanting to make some performance adjustment to it. I have bought a luncati roller cam, new haromnic balance, new timing chain. i am looking for some heads that woud help produce more power. I have a 400 turbo transmission with an 3500 stall also. and 3.73 performance gears. what are some decent heads for this motor. eventually I want to have a t3/t4 twin turbo to this car. Woud ike to keep it street and strip. any ideas. I do have my msd also for engine.

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Old 12-25-2012, 10:01 AM
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is this a factory 8.1ltr mpfi or a 454 stroker based
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Old 12-25-2012, 10:09 AM
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is this a factory 8.1ltr mpfi or a 454 stroker based
Or factory LP fleet vehicle.
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Old 12-25-2012, 02:29 PM
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496 build

it is a stock 8.1 engine
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Old 12-25-2012, 05:24 PM
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496 engine build

Do you know the effective head volume of your pistons? Also are they flat top or dished. The best heads for power are Afr, Dart, Brodix.
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Old 12-25-2012, 08:13 PM
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I've only seen heads and intake for the 8.1 from Raylar and Dart.
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Old 12-26-2012, 10:01 AM
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Better have extremely deep pockets to build an 8.1, as very few parts from a smaller/earlier BBC fit it. Heads have wrong bolt pattern, internals are all oddball dimensions.
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Old 12-26-2012, 02:26 PM
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did you buy a "turbo" cam?
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Old 12-26-2012, 07:35 PM
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496 build

Lunanti roller cam
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Old 12-26-2012, 07:39 PM
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did you buy a Lunati,"turbo" cam
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Old 12-26-2012, 07:44 PM
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did you buy a Lunati,"turbo" cam
hint hint..
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Old 12-26-2012, 08:19 PM
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No I don't believe I did, didn't know there was a difference.
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