Can anybody give me some info on a corvette aluminum head casting # 10088113?

I'm building a 350 SBC, and a local guy is selling these heads for a decent price. Previously, I planned on using Vortec L31 heads. Are these a good head? How does it compare to the L31? Is there any emission problems (besides no heat riser) that I should know about?

thanks

gene

 

look here:

http://www.streetrodstuff.com/Produc...ette_Aluminum/

alum 58cc 1.94 1.50 valves D shape exh. port

www.google.com is your friend

-Rich

 

The "113"'s are a great head. I have a set and love them. I had the ported and polished and added 2.00 / 1.60 valves. The only problem is with compression. They are a 58cc head. If you are below 9.0:1 now, you should be alright.

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1992 Pontiac Firebird 350/Six Speed
1987 Toyota Pickup 383/500+ HP

 

I run the vette heads also, and have nothing but good things to say about them. With a little porting they can be competitve with many aftermarket heads. I'd have to say that the vortec heads still offer a better value for money if you can work with that intake pattern.

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'88 RS (originally 2.8)
-350, .040 over, vette alum. L98s, stock tpi.
-305 injectors & chip
-TES headers & edelbrock cat back
-3.73 gears, 700r4.
Best with 2.8-17.4@77mph
Best with 305-15.0@93mph
Best with 356-13.7@101mph
on a 2.050 60 ft.
(Damn the 2.8!)

 

I also have them fully ported and polished. I was told by many publications that the vette heads work 30% better on a 305TPI than a 350 TPI. Must of spent $800.00 on the heads and porting job and probably outflow SOME aftermarket heads.

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92' camaro
New 305 block TPI conversion, Flat top pistons,Bore over .30 Forged parts all around,Edelbrock intake,ported plennum,ported corvette alluminum heads, accel cam,52mm throttle bodie, SLP runners Home aid cold air induction, Air foil,ford SVO 19lb injectors,fuel regulator,cloys timing chain, comp alluminum roller rocker arms and pushrods MSD 8.5 mm wires, bosch plattinum plugs, hypertech cap & rotor and coil, Edelbrock TES headers, free flowing catalytic converter and a 3 inch force II flowmaster exhaust system, and a 3 inch cutout,Zoom multi friction clutch, T-5 tranny,billenstien shocks&struts.
Soon to come!!!
Procharger system 12lbs o boost.
New paint job(hawaiin orchid purple)Cast alluminum ZR1 rims w/ 275 tires.
Favorite quote: "where ever u go, there u are"

Other car;
1971 plymouth Duster
Mods:340,edelbrock victor jr. intake, 650 4 barrel holley, heddman headers,40 series dual flowmasters, cold air intake,4:10 gears, just got a new paint job and cragar rims with 315 tires in the back.
:Yeah its not a chevy but damn how many 71' dusters have u seen in the streets.

 

I talked with a couple of Chevy Dealers: Sallee and Scoggin Dickey, not to mention my machinist. Anyway, without exception they all favored the vortec over the "113" head. The guys at Scoggin Dickey had the most concrete answer: they tested this exact combo - i.e. a SBC with same cam and everything else, tried the "113" heads then tried the Vortec and got a BIG increase in HP. I think he said they've gotten as much as 410 HP out of the vortec heads in stock configuration.

Not to say that porting and polishing would improve the '113', but out of the box it looks like a no-brainer. I have to admit though, that the aluminum heads seem like a good way to go. But, they're 10 year old design and it looks like the vortec beats them out. Go figure. There's also a web site, cant remember the name, that has comparison flow numbers for these heads. Same story, the vortec beat out the '113' in all respects.

go figure.

gene

 

I agree, I think the vortec heads are better if you have the intake for it. Also, the '88-'91 L98 aluminum heads have better ports than the earlier years.

Jeff

 

This may all be a mute point now. I just got the paperwork on the new Edelbrock "e-tech"(?) heads. I guess the are aluminum versions of the vortec. I cannot wait to see how much though!

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1992 Pontiac Firebird 350/Six Speed
1987 Toyota Pickup 383/500+ HP