Aluminum big block cylinder heads

[BSB67]

If he's already got 2293s (original post said TRW domed piston) and he wants it to run on pump gas with that smallish cam..... op better do some calculatin' to figure out what compression ratio he wants. That will determine which heads to look at.
My suggestion would be the open chamber rpms.
(I have 2295s domed trws in a 440 with iron heads, and it will run on 91, but it has 40 more degrees of cam than the op, and lots of converter and gear, and I still add a bit of 100LL cause I can).

Yep. The details will matter

 

[JARRETT LYNCH]

What is difference between the Edelbrock EZ street vs the RPM"s?

 

[33 IMP]

What is difference between the Edelbrock EZ street vs the RPM"s?

Rpms are supposed to have better quality valves and springs. Other than that..... a couple of bucks.

 

[ckessel]

Valve seat material is different too.

 

[RemCharger]

Streets come with a warning not to go above 5500 rpm. I do know people that cross the line in a bracket racing , but I've seen enough sideways valve heads and total destruction that I'd be reluctant to push any kind of luck and listen to what they said.

 

[33 IMP]

Streets come with a warning not to go above 5500 rpm. I do know people that cross the line in a bracket racing , but I've seen enough sideways valve heads and total destruction that I'd be reluctant to push any kind of luck and listen to what they said.

Yikes.
I ran my iron head 440 to 6200-6400, before I found out it ran just as quick and fast shifted at 5900.
I guess it's good that I bought rpms (and maxwedge victors!).