GM made this confusing for me :c
#1
GM made this confusing for me :c
Ok, so i plan on doing a head/cam install here in the next few weeks.
I picked up 706 and 241 heads.
the 706 i have been told flow the same as the 241...
can someone help me? i plan on haveing the heads ported and polished
I picked up 706 and 241 heads.
the 706 i have been told flow the same as the 241...
can someone help me? i plan on haveing the heads ported and polished
#4
TECH Senior Member
Once properly CNC ported with equal valves they will make similar power. 706 doesn't stay 61.5cc if cnc ported. Bigger valves are needed as well in 706. 241 on the other hand can use stock 2.00/1.55 valves and flow close to 300cfm (properly done by the right people).