71 Head Upgrade
Thread Starter
Burning Brakes
Joined: Sep 2005
Posts: 1,139
Likes: 109
From: B'ham Alabama
71 Head Upgrade
I have a stock / base 1971 350. I need a valve job and I'm considering just doing a head upgrade to improve HP.
Is there a stock appearing direct bolt-on upgrade for my stock heads?
I want to maintain the stock look and do not want to perform any other upgrades. Are there any head swaps that would give me the stock look and still improve Horse Power?
OR....is there a way to have a machine shop to significantly improve my existing heads?
Is there a stock appearing direct bolt-on upgrade for my stock heads?
I want to maintain the stock look and do not want to perform any other upgrades. Are there any head swaps that would give me the stock look and still improve Horse Power?
OR....is there a way to have a machine shop to significantly improve my existing heads?
Race Director
Joined: May 2006
Posts: 18,708
Likes: 2,574
Install aluminum heads and paint them.
http://www.edelbrock.com/automotive/...treet-sb.shtml
http://www.edelbrock.com/automotive/...treet-sb.shtml
Last edited by MelWff; Apr 23, 2015 at 02:31 PM.
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
Edelbrock makes some with 100cc chambers and stock location exhaust ports. They're aluminum but with some orange paint they'll look kinda stock. '71 BBC came with 113cc chambers so going to 100cc will bump compression a bit even keeping the stock pistons.
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
Ooops. Dunno where I got BBC from. 
Plenty of SBC choices, iron or aluminum, but I don't have any specific recommendations. Been years since I picked SBC heads and there's so much more on the market these days.
Plenty of SBC choices, iron or aluminum, but I don't have any specific recommendations. Been years since I picked SBC heads and there's so much more on the market these days.
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
I like my world products Torquer II w/67cc chamber, pocket ported and unshrouded vlvs. RHS has some iron
heads of their own design. Dart has a selection of iron heads some CNC ported. Then theres Dart SS iron eagle heads w/67cc chambers with vortec style head (needs vortec intake). Or even Chevys own vortec head w/64cc chambers. EQ heads are the latest in value perfromance sbc heads.
Stock looking is up to u. None of these heads will fool a car show judge. But good luck converting them just for looks.
I think those would all be an improvement over your stock iron heads. And ya know every time i read of someone porting and re-studing a stock head they say they wish they had just spent the money on good aftermarket heads.
Hope this can help.
heads of their own design. Dart has a selection of iron heads some CNC ported. Then theres Dart SS iron eagle heads w/67cc chambers with vortec style head (needs vortec intake). Or even Chevys own vortec head w/64cc chambers. EQ heads are the latest in value perfromance sbc heads.
Stock looking is up to u. None of these heads will fool a car show judge. But good luck converting them just for looks.
I think those would all be an improvement over your stock iron heads. And ya know every time i read of someone porting and re-studing a stock head they say they wish they had just spent the money on good aftermarket heads.
Hope this can help.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
http://www.competitionproducts.com/m.../#.VTnQj8J0zct
These have 64 cc vortec chamber and pre 1986 intake and valvecover bolt up. Flow 250 CFM.
These have 64 cc vortec chamber and pre 1986 intake and valvecover bolt up. Flow 250 CFM.
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,029
From: eastern NC
Dart Iron Eagle Platinum Series Cylinder Heads, better than anything that Chevrolet put on them back in the day and a big improvement over what you have. Great value for the money. You can certainly buy better heads, but you will also pay accordingly, as you should expect. They offer different versions of this head at slightly different prices.
Dart#301-10121111
Assembled Head
180cc Intake Runner
2.02'' Int/1.60'' Exh Valves
1.250" Springs
Straight Plug
http://www.jegs.com/i/Dart/301/10121111/10002/-1
Good luck... GUSTO
Dart#301-10121111
Assembled Head
180cc Intake Runner
2.02'' Int/1.60'' Exh Valves
1.250" Springs
Straight Plug
http://www.jegs.com/i/Dart/301/10121111/10002/-1
Good luck... GUSTO
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Drifting
Joined: Mar 2006
Posts: 1,263
Likes: 188
From: Wabasha Mn
Look at the summit/dart 152123 cast iron large valve 72 cc modern chamber heads with screw in studs and .525 lift springs. $630 shipped to your door. Have a set on my carbed c4 and they work great compared to my old crappy 624 heads.