1988 tbi 305 heads

[dirty white boy]

buddy of mine got a late 70s 4x4 1/2 ton truck with 305 in it,..started knocking other day an he got a 88 tbi 305 otta a firebird he wanta use to get it going,..witch heads be better for him to use an why?

[twisterf5]

heads should be 58cc more bottom end. may be better for in that heavy truck but i would change the cam tbi cam may not work to good.

[dereksehi]

The 88 TBI heads are the better head of the two but if you are trying to put a carburetor on the tbi engine the intake will have to be changed and the center two holes on the intake side of the tbi heads are at a different angle than the early sbc heads and they require their own intake.

[ka_jd7and1]

There is a factory Quadrajet intake on '87s that has the correct center intake bolt angle.

[dirty white boy]

thanks yall,..what i was needing to know...any body got a cam recommendation??? sposed to be a roller cam but i ant opened it up yet...

[Rwagner22]

CS1014R 1500-4800 RPM Range 278 intake/288 exhaust Adv Dur Duration @.050 204 intake/214 exhaust Valve lift 420 intake/443 exhaust, Lobe C/L 112There are a lot of upgrades you can do to a TBI motor!!!