If it was mine, I like Brodix heads better, I would use a 6.7 rod, I would have a bigger split on the cam probably 8 degrees and shaft rockers just because I like them. I don't know anything about Whipple or Autronic Efi. Manley and MSD should be fine. If I remember right this is a 598, nice size motor, I like the 4.5 crank, I would use a Crower.

I missed a couple, the Big M is an excellant choice, the compression should work well with the Whipple from what I hear. Oliver is a great rod, JE is a good piston, definitely
want good rings. 12 qt pan should also be fine, I think you'll want to add an oil cooler with a thermostat.

GPM definitely a oil cooler and temp. As far as bore I am not sure but I will find out.

Blower pistons for a 6.7 rod 4.600 bore are special order. Going through that right now myself. Building a pair of 598's with 5 litre whipples.

Jeff that 5 litre whipple will be a nice addition to the 598. Are you working with Dustin. He may suggest Ls1 firing order.

campion I will talk to you in a week about my project , leaving for mexico tonite. Do not be afraid to ask lots of questions . Good luck , Jeff

Have a nice trip and keep in touch. Stay away from the tequilas....

If you are building a 598 with a 4.5 crank the bore will be 4.6

thanks GPM I will verify with Gordon at Paul Pfaff engine.

Ask him about Kenny Barnes motor.