Cossie head who you use 137.8 .
Thread Starter
Wahay!! I've lost my Virginity!!
Joined: Jun 2013
Posts: 74
Likes: 2
From: yorkshire
Cossie head who you use 137.8 .
Got chance of buying a 2wd head just been polished and ported new bronze guides etc . Buts it's 137.8 bellow tolerance . But the specialist 
Says its fine can be use for 600 bhp
So usable or not ?
Says its fine can be use for 600 bhp So usable or not ?
Thread
Thread Starter
Forum
Replies
Last Post