what other cylinder heads will work on a 305?I know of the Torquer 305s and the Vette Aluminum L98 heads. Is that the only choices for 305 TPIs? Also with new heads and a Edelbrock intake + a ported plenum how much HP/Torque gain might i look at rough guess?

 

Ive been through this.The W/P and the vette heads are the only one's(that I know)
that have 58cc.You might be able to get a custom set made by AFR,I never tried.
If I could do it again,I would go with the Vette heads.They are 40lbs. lighter and flow better than the W/P.
The problem with the W/P is,they flow like ****.I read 139CMF @ 5000rpm.When I bought them I thought they were machined for 1.440 springs.I was wrong.
So now I have to decide whether to have the W/P heads fully ported,or scrap them and go to a bigger aluminum head and have them cut down to 58cc.Then I have to worry about the bigger valves and shrouding
Nitro Don



------------------
1990 Trans Am WS6
305TPI 700R4

ENGINE:
150hp NOS kit
March underdrive pulleys
Edelbrock headers(JetHot)
Mac off-road pipe
Flowmaster exaust
Jacobs ultra coil
K&N filter
Fulley ported base,
runners,& plenum
Crane AFPR
Hypertech airfoil
Crane 1.6 rockers
210/220 .533/.544 Cam
W/P Torquer heads
Edelbrock TPI Base
Edelbrock TI Runners
Edelbrock 52mm T.B.
TRANSMISSION:
Richmond 3.73's
Auburn posi
B&M Mega shifter
TCI shift kit
Vette servo
B&M 3-4 upshift kit
TCI Trans Rebuild
2800 stall 9.5" TC
Nitto Drag radials
FUTURE MODS:

BEST RUN:
12.48 @ 109.23 MPH
(with stock heads,cam,intake,and crappy Pep Boy's tires)

 

how much do Vette heads with the 58cc Combustion chamber usually sell for?

[This message has been edited by TPI400guy (edited February 13, 2001).]

 

I bought a pair of refurbished corvette alluminum heads for my 305 and i bought them off a guy who deals with corvettes i paid $400.00 and got them ported and polished and paid $300.00 a total of $700.00 what a deal huh. If ur interested i can give u the guys number. Remember though u can only use heads from a corvette from 87' to 91'.

 

'87 to '91 didn't know that!! Maybe ill check around town but sounds like you got a steal of a deal. Were they bare or did he give you the valve springs and stuff

 

Oh ya almost forgot I don't need EGR in canada and can still be saftied (So long as you can afford a 24 of your mechanics favortite beer any car in Canada will pass Saftey )