HIGH RPM 540
 

IS ANYBODY RUNNING AFR 335 FULL CNC ON A HIGH REVING 540? JUST WANT TO KNOW IF THEY WILL FLOW ENOUGH THE SPECS SAY THEY ONLY GOOD TO 7000 RPM THEY WORK GREAT ON MY 468 MOVING UP TO A 540 NEXT YEAR. LOOKING FOR 950-1000HP ANY INFO WOULD HELP THANKS :roll: :roll: :roll:

Re: HIGH RPM 540
 

What do you consider high rpms ?

Better heads out there to get 1000hp out of a 540 is taugh as it is without a ton of work.

Re: HIGH RPM 540
 

I am not sure what you consider high rpm, but I run my 540 around 8000 - 8200 rpm and my engine had Dart 355 CNC heads on them. My engine was just about 900 hp. They didn't flow enough air so I ordered a set of Edelbrock Victor heads from Curtis at RFD.

HIGH RPM 540
 

I PLAN ON RUNNING IT ABOUT 8000 RPM RANGE WITH ALUMINUM RODS /15.1 COMPRESSION AND JESEL ROCKERS

Re: HIGH RPM 540
 

IMO you will need to find a very happy dyno to get 1000hp, 900 can be had though. My 548 made 950hp but had a lot of work done to it, piston, head,intake wise. The heads will be a big hold back for your combo you should call RFD and get them worked on if the budget allows.

Go Big Duke/ Big Chief. Thatll get ya there :D :wink:

He knows for sure ! Dukes are the way to go :D

HIGH RPM 540
 

THANKS FOR INPUT JUST TRYING TO FIGURE OUT WHICH WAY TO GO I SEEN IN THE CLASSIFED SECTION SOMEBODY HAD SOME BEAST HEADS FOR SALE PORTED BY REHERMORRISON WITH SHAFT ROCKERS .JUST WONDERING IF THOSE WOULD GET ME IN THE POWER RANGE I'M LOOKING FOR.

Would they work yes .. are they the best far from.

Dart 355's, Brodix bb3 x's, BMF 385's, RFD Edelbrocks
All conv heads thats will work well and make the most HP/TQ

18 Degree stuff Big Dukes would be what I'd look for but your going to spend bigger money there.

Is there some reason you need to stay 540 ? Much easier to get there (1000hp) with a 572/582 Combo if you have to buy the stuff anyways why not go bigger ?

HIGH RPM 540
 

THE THING IS I HAVE A GM 502 BLOCK NOT A AFTER MARKET BLOCK .I THOUGHT I WOULD NEED A AFTER MARKET BLOCK TO GET 572ci ISN'T THE LIMIT ON THE GM BLOCK 555-565 I'M NOT DEAD SET ON 540