2CLN4U

I just bought some trickflow heads and I was wondering if my stock 1991 block will be strong enough to handle them and the new compression. All reccomendations welcome. The specs are below.

They have 2.02" intake and 1.60" exhaust valves, and are ported to a Fel-Pro #1262R intake gasket. These heads are real air movers, and flow 301 intake and 207 exhaust. They have 49cc combustion chambers, and have triple springs installed.

thanks

Dbeck002

49cc combustion chambers? ive never heard of trickflows going that small.

87mustang347

yes u shood be fine. no matter what head u put on there these blocks cood handle at least 500hp

cammedlx

well i have never heard of the chamber size but i would do a valve clearnce check because of the 2.02 1.60 valves i have heard the will not clear stock pistions unless you cut valve reliefs in them so i would check to be on the safe side

nemethjames1

49 sounds almost pretty close to stock i think... are you going to be putting a cam in it?

2CLN4U

I am putting an E-303 in it for a cam. Also have ported upper and lower intake. Anyone know where I could find stock specs on the heads?

vfast

well I hope there not 49cc which means the heads have been shaved ..normally thier 58-59 and 61-62..I would do a valve cleance check with those heads

nemethjames1

might want to look into different heads

cammedlx

that is the exact same thing i said v fast because there is most of the time vlave clearnce issues with the bigger valve heads so dude you better check vlave clearce or you might just be sorry and the stock chamber size is 58cc