camaroneil

hi,
just took the valve covers off and noticed i have 333882 heads on my 350,
looking in david vizards book it states these were used on 1970 to 1976 400 engines,
mines a 77 350,
also, when i removed the intake manifold the engine looks red inside, all the others i've stripped were dark grey/blackish,
any ideas,
thanks,
neil


just found that they were used on 70 to 80 350 and 400 engines , got this from the nastyz28 site,
intake 1.94 exhaust 1.5 76cc head,




[Modified by camaroneil, 10:36 AM 12/20/2003]

Corz

sounds like smog heads.. perfectly fine if you have a driver/boulevard cruiser. if you want performance.. get some 64cc 2.02 heads

comp

if you do the port and pocket work and don't have to pay for labor they are OK, you'll just have $ in basic valve job, have 3 sets to do now :hurray:

KenSny

L82 333882 heads had 2.02/1.60 valves, guideplates, 76cc chambers, 151cc intake runners.

L48 333882 heads had the smaller intake valves, no guideplates.

These are "smog" heads and are prone to cracking because of the thin area between the two paths for the exhaust crossover AND because of this they run hotter than heads without the exhaust crossover.




[Modified by KenSny, 8:49 AM 12/20/2003]

greatgonzoglenn

Just my .02........their crap. Get a good set from an aftermarket supplier and use the 882's for boat anchors. There are MUCH better out there. Again, just my .02 :flag

Oldguard 7

I concur the Chevy Small Block Interchange Manual states that these heads are prone to cracking as KenSny stated in his reply. It also said that if you have these heads on your engine, get rid of them.

comp

all the sets i have aren't but they have been over heated real bad , think that
may be the weak link?? your correct some do crack real easy to see :eek:
most don't leak thats what gets me :skep: i do them for a cost thing ,alot of
people ain't got the $$$ to buy after market :banghead:

camaroneil

thanks guys,
looks like i'd better get a new set then,
any ideas about the red coating inside the engine???
neil

comp

probably epoxy paint , to help oil drain back in to oil pan.
i do it after i have debird the inside, it's one of the extra things to do in a build

comp

check out the vortec head post thats a better upgrade for a few extra $ :thumbs: