David Vizard, Uncle Tony's garage, Unity motorsport. Mission impossible Dodge 302 Head porting

MOPAROFFICIAL said

Meanwhile having an emotional response yourself. Why did you start the thread and share the yt video. You must have been really excited about it ...or is it just more of the same old chest pounding..over someone elses accomplishments none the less. Reality is... they be best for a 273 cid in the 1.78/1.5 ported form.. Best head for it actually. They be okay for a 318 in the same form ..1.78/1.50 ported.. but not for max power, that's when you use a bigger port.

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These guys didn't need a bigger port:http://wright-here.net/files/articles/phr_1109_sbo/phr_1109_sbo_ocr.pdf

They made 1.37 HP per cube with only 195 cfm peak flow. They made 2.2 HP per cfm just so you know that's 430 ft ponds of torque and 435 Hp

"The intake port is way smaller than the original. , think the factory was 152 cc and now it's down to 145 and it's much higher. It's got a small cross section of 1.91square inches." Final flow numbers ended up around 195 cfm on the intake and 170 on the exhaust. Though not huge peak flow numbers. he claims they were almost at those numbers by .200-inch lift. Just perfect for limited camshaft and rpm range applications."

That 145 cc port has no problem making power..............Seems to be a Mopar thing because I can get a Holden 308 with smaller valves than a 318 starts with that will go mid to high 11's in a street car that the engine builder says is an everyday driver.

Qwkmopardan is another example of what you would call under headed for the cubes (410) but somehow makes enough power to run 9.6's. In some peoples brains that same head is needed on a 318 to make power.........

I could put up many other examples.......