243 heads
Thread Starter
Staging Lane
Joined: Sep 2012
Posts: 54
Likes: 0
From: columbia,sc
243 heads I'm getting ready to send my stock 243 heads off to get cnc ported and was wondering how much if any can I have them milled without any clearance issues...btr stage 3 cam
You can always mill the heads later once you've measured your P-V clearance but I'd measure it now so you know how much you can get away with. I'd want to determine this myself rather than take one's word because there's different combinations of parts that could affect the P-V from one engine to another.
Staging Lane
Joined: Jan 2018
Posts: 67
Likes: 8
From: Pensacola
I just had mine milled around 22 thousandths off and I have P to V clearance for days with a BTR stage 4. I do have 4cc valve reliefs though. I would check regardless but especially if you have stock flat tops.
