I need a set for my 350. Someone used the 305 heads on it when they did the swap.Does anyone have a set or the casting numbers, so I can find a set. Any help would be greatly appreciated,especially since the car is tore down at this moment

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87 IROC-Z 350 T-tops
"Rock & roll doesn't create psychos it just helps psychos be more creative"

 

Consider new World Products 64cc S/R Torquer (not just S/R's) or Sportsman II's as alternatives to used factory parts. They're new castings, beefed up in areas the factory parts are weak, they'll flow better, have screw-in rocker studs instead of pressed-in, have 2.02/1.60 valves, are available in '87-later or '86-older intake style, and won't cost you much if any more than getting used parts rebuilt (especially if you get the used parts machined for larger valves and/or screw-in studs). You can get them assembled, in which case they're a bolt-on out of the box (after cleaning, of course).

Competition Products had the best prices I saw, and were very helpful and accommodating when I talked to them.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. 2-1/2" cat-back, ZZ3 intake, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/'87 LB9 block, ZZ3 cam, ported World 305 heads, Hooker 2055 headers, 3" Catco cat & 3" cat-back, Spohn SFCs).
57 Bel Air, my 1st car. '66 396, 9.7 CR forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 600 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).

[This message has been edited by five7kid (edited September 03, 2001).]

 

I agree

 

what kind of price are we talking on these heads. I need to get it running quick. right now I'm down to one car in the household so temporary and cheap were priority. I have a 383 stroker awaiting in the wings but it is not near finished. Thanks for the help so far.

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87 IROC-Z 350 T-tops
"Rock & roll doesn't create psychos it just helps psychos be more creative"

 

About $650 assembled & shipped for the Torquers, about $170 more for the Sportsmans.

The Sportsmans would support a 383 very nicely.

[This message has been edited by five7kid (edited September 04, 2001).]

 

The casting numbers on stock iron L98 heads are 14101083.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-

 

And if you are wanting the aluminum vette heads the part number is:12556463 and the casting number is:10088113

I'm going for the vette heads myself as I have a 305 and need the smaller chambers.

Robert

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1987 IROC-Z Auto (LB9)
Black/grey interior with the stance of a streetfighter
I like to think of her as Arnold Schwartzeneger in a dinner suit

Mods
Custom exhaust. 4 Inch pipe from the headders all the way back to a single muffler at the rear. No Cat. K&Ns, AFPR and Air foil.

Future mods:
Cam change
New torque converter
New heads (maybe corvette L98)
Strut brace
Sub frame connectors
Ram Air

Current G-Tech times
0-60mph 6.26 seconds
1/4 14.74@100.2mph

 

Check the classifieds on this board. One guy has some L98 heads for sale pretty cheap.