hp 500 horse power

Reply Subscribe

Thread Tools

02-11-2015 | 02:38 PM

#31

Baja Rooster

Registered

Joined: Oct 2013

Posts: 2,888

Likes: 148

From: SF Bay Area

My 502 has ported oval port Edelbrocks with 9.5:1 pistons and a ZZ502 cam. I wonder if once I get a few demons sorted if a different cam might get it to ~600hp?

02-11-2015 | 03:13 PM

#32

rmbuilder

MarineKinetics

Joined: Oct 2002

Posts: 942

Likes: 5

From: Rochester, NY

Baja,

What base Edelbrock casting head did you use? Do you have post porting flow sheets?

Bob

02-11-2015 | 03:23 PM

#33

F-2 Speedy

Platinum Member

Joined: May 2012

Posts: 11,440

Likes: 3,972

From: Midwest & T-Rock

Quote:

Originally Posted by endeavor1

Did the 502mags use 088 and 934 heads or just the HP series?

Second Q: besides being gen 5 vs 6 is there any diff in a 088 and 934 head?

Both my gen 6 502 mag engines had 088's on them when pulled apart

02-11-2015 | 04:54 PM

#34

Baja Rooster

Registered

Joined: Oct 2013

Posts: 2,888

Likes: 148

From: SF Bay Area

Quote:

Originally Posted by rmbuilder

Baja,

What base Edelbrock casting head did you use? Do you have post porting flow sheets?

Bob

I'll check...

02-11-2015 | 06:04 PM

#35

rmbuilder

MarineKinetics

Joined: Oct 2002

Posts: 942

Likes: 5

From: Rochester, NY

Quote:

Originally Posted by endeavor1

Did the 502mags use 088 and 934 heads or just the HP series?

Second Q: besides being gen 5 vs 6 is there any diff in a 088 and 934 head?

The 990_088_924 castings all share the same port and combustion chamber architecture. The 924 heads are a 26º_ 118 cc chamber with 3/8", 2.180" intake and 1.880" exhaust valves from GM. The only difference is part # 12562925 will accommodate 7/16 accessory bolt holes and # 12562926 are for 3/8".

Bob