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Size of exhaust-tubing

Started by duo-stripe, February 27, 2006, 11:28:08 AM

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duo-stripe

February 27, 2006, 11:28:08 AM
Got a technical question. My 69 Roadrunneris equipped with a 440 stroked to a 496, standard 906 heads ( non-ported ) Edelbrock TM-7 singleplane intake, Holley 850 DP and an Iskendarian camshaft. Would a 2,5 inch exhaust be too small for this kinda engine? I have original exhaust manifolds.
Thanks,
Marcel
MoPars overseas...<br />MoPars in the Netherlands

firefighter3931

#1
February 27, 2006, 08:27:52 PM
Unless you install headers there's not much point to going larger than 2.5in exhaust. Manifolds are restrictive and on a 496...they're very restrictive. You should have at least a 17/8in header and 3in exhaust to realize the full potential of that build, inmo.

Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs
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