Edelbrock sb head question

[1BAD68]

I've been trying to figure out the difference between the Edelbrock 60779 and 60179 heads.
So far I can't see any differences other than price, they even use the same 60179 part# between the two.
What am I missing?

http://www.jegs.com/i/Edelbrock/350/60779/10002/-1?CT=999

http://www.jegs.com/i/Edelbrock/350/60179/10002/-1?CT=999

If you click on "overview" you can see the same part# 350-60179 is used on both heads

[Dodgecharger74]

looks like  2 cc combustion chamber volume

[Troy]

looks like  2 cc combustion chamber volume

Edelbrock's description:
http://www.edelbrock.com/automotive_new/mc/cylheads/chrysler/sb_perf_rpm1.shtml

Same heads at Summit:
http://www.summitracing.com/parts/EDL-60779/ (63 cc)
http://www.summitracing.com/parts/EDL-60179/ (65 cc)

Troy

[1BAD68]

Ok I was reading the Jegs overview that says "Spec Variation 63cc or 65cc combustion chambers" on both.

[firefighter3931]

The smaller 63cc head is the one you want....it has a closed chamber and that is better for detonation prevention if the engine is assembled/machined correctly. For pump gas builds it's important to assemble a "tight quench" motor. 


Ron