Which heads?

[koke]

Well heres the down low. i built a new block, .10 bore, new rods, crank, EDL-2102 cam, other than that internals are stock. i have done the Tbi mod have headers and 2 1/2 true dual exhaust, edelbrock preformer intake with the 454 style adapter. my question is i have a set of good casting 305 heads that are rebuilt or stock Tbi heads????? any help would be greatly appreciated!!

 

[98dieselburb]

I have read somewhere that the heads a lot of TBI people take are the TPI heads...from the older 3rd gen camaro/firebird. I know Vortec heads can be used, but that requires a lot of work, or a expensive intake.

I am looking for a set of those TPI heads myself. I am not sure if using 305 heads on a 350 is a good plan or not though, but I know they made a 350 TPI also.

Good luck, let me know what you choose...

Shawn

 

[94_C/1500]

I would not use 305 heads. They add some compression to your engine, but your valve size has to be smaller and your valves are more shrouded. I would just rebuild the 350 TBI heads. They can be made to flow decent.

 

[Blue95]

I would just have the 350 heads reworked, do some polishing on the ports and maybe a bit of porting and call it done, they are good for down low torque and MPG,.

 

[koke]

ok i'll go that route than, gasket match the heads, grade 8 head studs, and maybe 5-7 pounds of boost? i was looking into a 3 bar map sensor and having a chip burned, any one disagree?

 

[Blue95]

You will probably want to have someone burn chips for it in person

 

[94_C/1500]

Or get an EBL

 

[koke]

yea i was talking to the guy from Harrison performance, any knowledge of his work? and i took a measurement of the 305 heads and i measured 1.8 intake and 1.5ex which i dont think is to bad right? i just cant let a decent set of heads that have a new valve job go to waste (derby car maybe haha) also going to swap to a NV3500 instead of the L60, have went through three of them with the 33's

 

[koke]

and EBL? like megasquirt? because i have thought about it a few times, (no emissions in montana) had to ditch the EGR with the preformer EMS intake

 

[koke]

just went to the shop and got the casting number 14014418, there 1.84intake 1.5 exhaust, 58cc chambers, and hardened seats, on my motor the compression would be 10.1:1-10.3-1, the make is 80-84.....any comments or just ditch them? lol