706 heads with boost
#1
On The Tree
Thread Starter
iTrader: (1)
Join Date: Aug 2009
Location: Sweden
Posts: 114
Likes: 0
Received 0 Likes
on
0 Posts
706 heads with boost
I found out that my lm7 got 706 heads, from what I have read they are ****. Would it be worth to change cam, push rods and valve springs and boost with this heads in a "junkyard build" or try to find some other heads?
#4
TECH Senior Member
iTrader: (60)
The issue with these heads is that are prone to cracking and leaking coolant, it's a Castech casting flaw. This is not an issue on all 706 heads, just some.
http://ww2.justanswer.com/uploads/Bl...t_loss_5.3.pdf
http://ww2.justanswer.com/uploads/Bl...t_loss_5.3.pdf