Christos

Hey guys. Here it is as promised.

Scanned from the latest issue of Camaro Performers http://www.superchevy-web.com



The stock 305 (stock NO# 14014416) heads were said to have come off of a 1985 305 TPI engine. The stock heads have 1.84 intakes, and 1.50 exhausts. (they also noted that most stock 305 heads had 1.72 intakes)

The World Products 305 "torquers" heads, have 1.94 intakes, and 1.50 exhausts. That, and 58cc chambers.

Thats all the info i have. They mention the addition of a camshaft, but i am unaware if its a copy of the stock, or a more aggressive grind.

I already contacted the editors about that, and am waiting on a reply. I will post it up here if i get a reply.

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1986 IROC Camaro
305 TPI "LB9"
3.23 gears
Doesn't know enough about cars.
AIM: jesusathome

[This message has been edited by Christos (edited June 06, 2001).]

[This message has been edited by Christos (edited June 06, 2001).]

Matt87GTA

You're gonna have to try that again. The graph or whatever did not come up.

Nevermind................... My fault

[This message has been edited by Matt87GTA (edited June 06, 2001).]

Christos

Still, if it is the stock cam, that isn't too bad. Can't expect the world with a 305, but it would be cool to build one up, if it could really get up there in the 1/4 mile. even mid 12's would be pretty cool with a 305. **** off alot of mustang 5.0 drivers

Greg '85 T/A

Christos -

Thanks for the post. Were the Torquer heads ported and/or polished?????

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-Greg

'85 Trans Am - WS6,TPI:
Original owner, original paint/engine/interior, plus the usual bolt-ons

86SCBNJ

The S/R heads come with a mild port and polish from World Products, at least that's what the article said. The cam used was a roller cam from Comp Cams, it is a little hotter than an L98 cam. The stck heads were treated to 3 angle valve job, compression was 9 to 1....

jcb999

i bet half the increase is the cam.

Ray87Z

I would assume they ran the same cam with both set of heads. They didn't??? If not that is a worthless comparison as far as the heads go then...

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Ray87Z
-Vortec headed 350.
86 IROC w/ a cammed 305 TPI.
Formerly Ray86IROC.
www.inter-scape.com/Ray

Christos

Oh well. Kind of sucks that they added a hotter cam too, than the stock 305 peanut cam. Kind of makes it an expensive 60 horsepower.

I just wonder why they had to change the cam to a L98 cam, just to get the stock rated horsepower and torque from the 305. I assume all of the TPI 305's were "LB9" engines. I do know that they did use a slightly better cam in 1985 then they did in 1986.

The article was informative, but wasn't as informative as it really should have been. I still have not received a reply to my e-mail to both editors, asking them for more info.

How much would you guys figure it would cost for thoes heads, and a new cam, plus a mechanics fee for instalation? My 305 just went over 100,000 miles, and it seems to be running alright, (hopefully no rebuild needed)

If it was in the neighborhood of like, 1,500, that wouldn't be all that bad to have done. It would make the little 305 kick some anus, and make the car more fun to drive untill i can afford a sweet 350.

Hope others found this info helpful. This is the first time i have been able to post something people might use, instead of my normal posts asking for help! : )


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1986 IROC Camaro
305 TPI "LB9"
3.23 gears
Doesn't know enough about cars.
AIM: jesusathome

LottaBallsCamaro

The only machining done by world was the bowls were blended, no porting or polishing. It does suck that they didnt dyno it without the cam.

88305tpiT/A

iTrader: (2)

yea,
I had the whole thing priced out at rollins speed shop in gainesville with the world heads and cam swap and the guy said 1500-1800 turnkey for it.
I figure that if you are serious about HP you shouldent do it, you should just swap the motor.

Pukka

According to the article, they did not change the specs of the cam, they only changed the type of cam from tappet to roller. They also installed forged pistons.

The dyno test shows the results of swapping only the heads after the other work was done.

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92 Camaro RS, LO3, 5-spd, T-tops

Performance:
K&N Open Air Filter, Edelbrock performer TBI intake, Fastchip Prom, Timing +4 degrees, Centerforce clutch, Xact 8mm wires, SLP 1 3/4" Headers (coated), Flowmaster Catback Exhaust, Z28 Grille w/aftmkt fog lamps, MacEwen white-face guages
Electronics:
Alpine 8030 Alarm System, Valentine One Radar Detector (How did I ever drive without one?), Pioneer DEH 7450 Head Unit w/6-pack CD changer, Pioneer DEQ 7600 Sound Processor, 2 Kenwood KAC-846 Amps powering 2 12" Pro Red subs, 2 Pioneer 6x9 and 2 MTX 4x6 speakers.
NEXT UP: TBI mods, 3.42 gears w/Torsen posi

86SCBNJ

My bad, the heads were not port and polished. The cam is a roller, and slightly hotter than an L98 cam. I think it is a fair comparison between cylinder heads, the only variable has been the cylinder heads. I think my next mod is going to be the World Product heads and an intake for my LG4, it will probably compliment my cam and headers....