A friend of mine has an '88 305 TBI T5 Camaro. He is buying the complete TPI system from another guy including plenum, runners, intake manifold, MAF, computer, wiring harness, TB, Basically everything on top of the heads and block.

He also intends to buy a Comp Cams camshaft.
He already has the exhaust upgraded with headers and cat-back stuff.

What heads are available in the aftermarket that are aluminum?

Or even cast iron? (I have the World Products catalog, the SR Torque for 305 with 58cc chambers looks like a good choice).

Any opinions would be appreciated.
TIA

Doc



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'87 L98 TPI IROCZ, AFR190 heads, 3.70 gears, ZZ9 cam, 2400 Art Carr TC, SLP 1 3/4" headers, SLP cat-back, no cat, no AC, no MAF screens, Accel manifold base & SuperRam, Edelbrock double roller timing chain, MSD ext coil & distributor, trans cooler, 52mm TB with airfoil, TB coolant bypass, AFPR(58psi), K&N filters, Hotchkis lowering springs, my custom chip, Lay Ind. ram air kit, SS Brakes 1LE upgrade 12" rotors dual piston calipers, 265/45R16 Kumho V700 tires.
ET 13.39sec @ 107.21mph
'90 Eagle Talon AWD, no rust thru 9 winters
'99 Camaro SS, red, 6-spd, T-tops, Mcleod clutch, Pro 5.0 shifter, MAF processor, Direct Flow airlid, K&N filter, next mod: 4.10 rear gears
313.7Hp & 320.6ft-lbf, ET 13.55sec @ 105.1mph

 

help please

 

The only heads I know of that will work okay on a 305 is the aluminum L98 vette heads that have small 57cc chambers. All regular 350 aluminum heads would not work right on a 350 and might even get some valve to cylinder wall interference.

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92 Z28 5.7
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Trick Flow 23° heads, Comp Cams XR270HR-10 cam, Accel intake base + ported TPI,
TES headers, Flowmaster catback, MSD ignition, #24 SVO injectors, 1LE aluminum driveshaft.

Click here to see pics of my car.
Check out our car club Truspeed
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What advantage do the corvette heads give when you use them on a 305? I've been thinking about that swap but don't know what sort of power increase I will see, if any??

Rob

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1987 IROC-Z Auto (LB9)
Black/grey interior with the stance of a streetfighter

Mods
Custom exhaust. 4 Inch pipe from the headders all the way back to a single muffler at the rear. No Cat.

Future mods due in March:
K&Ns
RAM Air
Air foil
AFPR

Hoping to get a couple of tenths with that lot

 

Rob,

Corvette aluminum heads and a Crane 2032 cam resulted in a 0.8 second decrease in N/A form on my 305. With my old Paxton supercharger, my boost decreased from 10.5 psig down to 6 psig, which means less restriction and MORE FLOW!!!

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Willie

Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
Paxton (6-psig): 12.57 @ 111 mph.
Paxton (6-psig) & 50-hp nitrous: 12.04 @ 114 mph.
ATI D1SC (10-psig): ?

http://willie.camaro-firebird.org/

1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.

[This message has been edited by Willie (edited March 17, 2001).]

 

good heads for a 305 are from a 96 -98 pick-up they are from the L31 engines some vans had them also 97 thru 2000 i am pretty sure you can order them through a gm dealer for about 430.00 if i am not mistaken

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mods:85 Z28
k&n air filter
b&m 2400 stall speed
comp extreme energy 470 lift cam
headman headers with 80 flow master
stealth intake w/650 spreadbore carb
more to come

 

edelbrock performer heads are great aluminum heads but they do not accept over a 450 lift and are expensive