I don't know if this has been asked yet but how fast do you go with trick flow 240's ?
That makes sense, thank you. For what I'm after (10.00s) they should do just fine. Andy f made 720 with his & if I can get 650-680 outta mine ill be happy
For a goal of 10.00 with what you gave for a car i would go right to the 270s.
1. A race converter will get you into the torque peak of the 270, which would be higher rpm than 240s
2 you can easily get there with 270s and a flat tappet cam
3 my guess is 675 hp to 700 hp will be cheaper using 270s
4 you will have untapped power potential for the future
5 the 240 port size( or stock iron head port size) worked VERY well on a little 383 roadrunner motor. The 440 got the same head, but IMHO it should have gotten a max wedge (270 size?) Head! You have a 512, a full 1/3 larger motor than the 383.
I look back at a pivotal point in my engine program. 2002. I had unported 440-1 heads with great valve train, a megablock with 4.500 bore, a billet 4.50 stroke crank.
I spent money on porting the heads TWICE.
I sold the 4.5 crank and went with a 4.15 which cracked after 100 passes.
If i had kept the 4.5 crank and bought B1Mc heads, i could have made another 150 hp + for less money than i spent to get 847!
Cubes and great heads!!!!
