340 Heads Recommendations- Aluminum vs Cast J

Scody21 said

If they are the 2.02 j heads and are crack free. Just run them.

My current set up is 340 .30 over with 10.2-1, comp XE285HL, roller rockers, stock airgap, 750 DP with 2.02 J heads, right at 390HP per a superflow 901 dyno.

Click to expand...

I was just going back over on this thread and realized we have a similar build on a 340. Mine has a slight compression advantage at 10.5-1, nothing really! But I’m running the ProMaxx CNC 2.08 Shocker head and 1-5/8 headers. The cam was modified for a 108 instead of the 110 LSA.

Glad you dyno’d it.