How do you figure that out

 

This sounds like a job for....... TONY MAMO!

 

Or Jake Fusion

 

......yeah,... him too!

 

smh.....

 

Me too... lol

 

And here....we.....go.....

 

I think they both have 2.08 valves

 

OK, enough screwing around. Will SOMEBODY come and help our bud here with some answers??

 

Same ? as normal just with port sizes and valves sizes being Near the same. No major Difference.

 

As with most questions here, it's as easy as a google search....

http://www.wallaceracing.com/discharge-coef.php

 

Hi Big, you have NO question able to be answered.

POST the Flow Sheet from EACH HEAD questioned.

The answer could then be made.

Lance

 

TFS 235

 

Mast 240 ls3's on a 3.9 bore

 

You can always ask them for nitrous exhaust ports.

 

Same basic heads! If your were to place them on the same engine what you"d say would be the difference? In terms of Hp/ Tq? One has a 11 degree intake valve angle while the other a Nos exhaust port. ? of Hp and Tq or how they'd each preform.. or as you asked:
Which heads have a better discharge coefficient
Ask which name sounds better. And that's your answer. Very similar numbers and performance. That's even with one being a cathedral and the other being a rectangular style head.

 

Not so sure. The mast heads are flowing on a 3.9" plate what the tfs are flowing on a 4.125" plate. That's probably your answer right there.

 

Brother even with bore sizes changing cfm generally stays they same. Done researched that one. Seen where guy uses different bore sizes with the same heads on the flow bench..... Same#.

 

Probably matters how close the intake valve is squished to the bore

 

You can say that but ER racing Ls7 heads were basically touching the bore on the exhaust side. 4.065 bore Hp was still made. I understand the logic and facts yet Numbers are basically the same. So what does this say. They say Ls3 heads are so shrouded on a bore of under 4.060 like 4.005. Why I ask do the still make hp.