460 Ford Forum banner
1 - 5 of 5 Posts

· Registered
Joined
·
11 Posts
Discussion Starter · #1 ·
Hey guys I have a 520 with P-51 Heads that was built as a moderate motor for my 4x4 10.9 comp JE pistons hawks racing crank, scat rods, comp 306s flat tappet. I am wanting to go through it this coming winter and set it up for my 2 wheel drive, so I want to go with a roller cam to get some more HP. Will that crankshaft hold up in a racing application?? Also my pistons were actually for Blue Thunder heads and the piston to valve is fine now but im worried with a bigger cam it wont be. Any suggestions on what crank and pistons would be great. Also for a cam??? I talked to kasse about one but always like other opinions.
 

· Registered
Joined
·
1,150 Posts
Hey guys I have a 520 with P-51 Heads that was built as a moderate motor for my 4x4 10.9 comp JE pistons hawks racing crank, scat rods, comp 306s flat tappet. I am wanting to go through it this coming winter and set it up for my 2 wheel drive, so I want to go with a roller cam to get some more HP. Will that crankshaft hold up in a racing application?? Also my pistons were actually for Blue Thunder heads and the piston to valve is fine now but im worried with a bigger cam it wont be. Any suggestions on what crank and pistons would be great. Also for a cam??? I talked to kasse about one but always like other opinions.
Cast or forged (it's an RPM)...which Scat rod?
 

· Registered
Joined
·
10,855 Posts
Hey guys I have a 520 with P-51 Heads that was built as a moderate motor for my 4x4 10.9 comp JE pistons hawks racing crank, scat rods, comp 306s flat tappet. I am wanting to go through it this coming winter and set it up for my 2 wheel drive, so I want to go with a roller cam to get some more HP. Will that crankshaft hold up in a racing application?? Also my pistons were actually for Blue Thunder heads and the piston to valve is fine now but im worried with a bigger cam it wont be. Any suggestions on what crank and pistons would be great. Also for a cam??? I talked to kasse about one but always like other opinions.
With a large camshaft those pistons meant for Blue Thunder heads will NOT work with the P-51 intake valve location without having the pistons notched again, in the correct location.
Get a better crankshaft.

IF it was mine I would sell the complete shortblock and build another one with the correct parts for the application ... if you don't sell that shortblock all together, you will simply have a lot of parts left over that you can't use.
 

· Registered
Joined
·
11 Posts
Discussion Starter · #4 ·
The Crankshaft is forged and nitrated, the rods are H-beam 6.8 and the pistons are also forged with a -22cc dish. So what I am looking for is some suggestions for a rotating assembly and then some ideas for a camshaft. I bought the crank from The Mustang Depot and was told it would support 800hp but I know there is better ones around. The thing is there are so many brands out there and everyone says there's are the best but what do you guys think is best for my application?
 

· Registered
Joined
·
1,150 Posts
The Crankshaft is forged and nitrated, the rods are H-beam 6.8 and the pistons are also forged with a -22cc dish. So what I am looking for is some suggestions for a rotating assembly and then some ideas for a camshaft. I bought the crank from The Mustang Depot and was told it would support 800hp but I know there is better ones around. The thing is there are so many brands out there and everyone says there's are the best but what do you guys think is best for my application?
The crank and rods are fine for what you're doing. You might be able to cut the SCJ valve relief in those pistons...I actually have no idea......but you could check.
 
1 - 5 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top