my 88 had a new engine put in it about a year before i bought it.it was the 88-93 gm goodwrench engine.the part number on them is 10159551.has anybody ever heard of these.give me some insight if you can.thanx

 

later LO3 heads... http://www.usol.com/~okfoz/90/90technical.htm

 

are they better than the regular heads?are they worth porting?or are they just a waste of time?

 

proably the same as 193's not sure though... i couldnt find the casting number, only the part number... they are swirl ports so porting them will help, and if you already have them, no point in replacing them unless you plan on serious power... i could have ported my 350TBI heads instead of buying the 350TPI heads and getting them ported like i did and it would have made a marginal difference if i was done correctly...

 

ok i`ll see if i can find alttle more info on them.

 

10159551 - 305 - 87-94 - 1.84/1.50 - 58cc


theres the part number, engine, production years, int/exh valve sizes and the combustion chamber size...


maybe if a mod sees this they can put it somewhere... this is the most extensive list of GM cast heads ive ever seen... http://www.chevymania.com/partsid/pa...p=head&block=S

 

you`re the man schwarz,good luck in cali dude.

 

ty! your welcome man!

 

That is a good reference. Thanks for the link! www.mortec.com is also tough to beat. They have everything.

 

np, mortec is nuts as well. i like both

 

the only question i have left is does anybody know if they are swirl ports or not?

 

yes, yes they are...

 

dammit!

 

Eh don;t give up on them yet. Check out the links in the above stickes to swirl port head discussion. Use that info to judge for yourself. A little port work helps tremendously.

 

thanx shifty i`ll give them a shot