Edelbrock performer rpm cylinder heads SBC - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-05-2008, 06:09 PM
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Edelbrock performer rpm cylinder heads SBC

Hello guys i was just wondering about these heads.

are they any good on a mild street/strip 350 sbc ? (max rpm 6500-7000)

best regards...

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Old 08-05-2008, 10:27 PM
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I have not personally used these heads, but every engine I've seen them on has performed very well. Give very good out of the box performance for the $$$'s and even more with a little port work. There are more powerfull out of the box aluminum heads but they cost a good bit more. The RPM heads are a very good buy.
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Old 08-06-2008, 11:55 AM
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Yes....

I agree...

I used them on alot of my small block stuff.

Great heads!

Can't go wrong for the price for sure.

355 went 12.40's first pass

406 went 11.70's same heads. RPM intake 750vacc carb.

I'm into turbos and FI now.... but for a small block combo like your interested

in they are a great fit.
~Scott
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Old 08-06-2008, 01:16 PM
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Quote:
Originally Posted by monzter
Hello guys i was just wondering about these heads.

are they any good on a mild street/strip 350 sbc ? (max rpm 6500-7000)

best regards...
A very good head and SMOG legal where that's required.

Bogie
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Old 08-06-2008, 06:12 PM
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We use the SBC RPM heads for drag racing. Good port design at about the best
price you will find for an aluminum head. For a 355 or smaller cubic inch engine,
the small runners keep the port velocity up for good low and midrange power.
With a little porting and the right cam they will pull good to 7200 on a 355.

I have never used the Edelbrock e-tec, most say they are even better.
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Old 08-07-2008, 04:52 AM
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heads

IMO they are the best value head for what you are doing. I have used them in both sb and bb chevy applications with excellent results. I had a set on a 10:1 406 in a 69 camaro. it went 11.50 with full exhaust and street tires.

I replaced a set of the rectangle port big block heads that came on the factory replacement 454 engines with the rpm heads and it was like another car.

I am in the process of building a 351 cleveland with them on also.


Keith
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Old 08-10-2008, 12:38 PM
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Thanks guys !

one more question, there is a guy in my state that uses these heads on 350 and he spins it to 8000+ would that be doable with the right valve train ?

Best Regards...
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Old 08-10-2008, 01:33 PM
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Quote:
Originally Posted by monzter
Thanks guys !

one more question, there is a guy in my state that uses these heads on 350 and he spins it to 8000+ would that be doable with the right valve train ?

Best Regards...
yes, but the question is will there be enough airflow to make power at those rpms.

8000 rpm needs stud girdle or shaft rockers IMO
maybe even better valves and springs
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Old 08-10-2008, 03:39 PM
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Quote:
Originally Posted by monzter
Thanks guys !

one more question, there is a guy in my state that uses these heads on 350
and he spins it to 8000+ would that be doable with the right valve train ?

Best Regards...
Yes with proper porting and the appropriate valve train.
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Old 08-12-2008, 07:02 AM
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OK thanks guys if i understand you right these heads will pull good to 7000 rpm ? thats where my shift point would probably be at...

Best regards

Monzter
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Old 08-12-2008, 04:14 PM
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We use these primarily on flat top 350s. With minimal porting the right cam,
intake carb. etc; shift at 6500 RPM and pull the top end at 7000 RPM.
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Old 08-12-2008, 09:04 PM
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yes that is exactly what i have in mind

i was planning on using 630 lift solid roller cam 260@50"
victor Jr manifold and a Holley hp750
and the bottom end would be 11:1 with forged dome pistons / 6" rods and steel crank
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Old 08-13-2008, 04:47 AM
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heads

I might have a different idea about a mild 350 then what you do.. In your first post you stated a street/strip mild 350.

IMO 260@.050 .630 lift solid roller, 11:1 IS-NOT a mild 350.

For the above mentioned combo i would use an totally different head.


Keith
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Old 08-13-2008, 08:40 AM
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OK maybe it is a bit wilder than mild
But this is going to be a street/strip engine ( more on the strip ) What heads would you suggest ? although it would be OK to try these out first !

Best Regards - you guys rock...
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Old 08-13-2008, 10:25 AM
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heads

This could start WW3....

There are a million opinions about what head is best for a SBC..and very little factual data on them...

My first question to you is... What kind of money are you looking to spend on a set of heads??


Keith
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