Anyone familiar with 330545 heads (73 castings)
01-08-2008, 02:29 PM
#1
Race Director
Thread Starter
Member Since: Mar 2001
Location: Mustang OK
Posts: 13,845
Received 3,766 Likes
on
1,669 Posts
2023 C1 of the Year Finalist - Modified
2015 C1 of the Year Finalist
Anyone familiar with 330545 heads (73 castings)
Is anyone familiar with the 330545 heads?
I have a chance to get a pair (probably need rebuilding) and they are supposed to have 2.02/1.6 valves, guide plates and screw-in studs. They are supposed to be complete, no cracks and never machined.
I am a STRONG believer in NOT using production SB heads beginning with 75-later models. The 75-later production SB heads (NOT Bowtie heads) was the beginning of when Chev started cutting corners on SB heads and by 77 the production SB heads were not worth having.
With these being 73 heads, I would expect them to be worth getting ($100).
I have a chance to get a pair (probably need rebuilding) and they are supposed to have 2.02/1.6 valves, guide plates and screw-in studs. They are supposed to be complete, no cracks and never machined.
I am a STRONG believer in NOT using production SB heads beginning with 75-later models. The 75-later production SB heads (NOT Bowtie heads) was the beginning of when Chev started cutting corners on SB heads and by 77 the production SB heads were not worth having.
With these being 73 heads, I would expect them to be worth getting ($100).
09-13-2008, 02:17 AM
#2
Burning Brakes
The cylinder head casting numbers on mine are 330545. I found them when my Torker intake manifold was out to replace the gasket. I then looked them up and found them to be (if I remember correctly), circa 1973, 350/327 cid, double hump, 76cc combustion chamber (kind of big), with 2.02-1.6 valves (also kind of big, but good). Mine have been massaged/ported and are not lightweight, although some '73 heads were (single hump 882's), although some say the 882's didn't show until '75. And I've been told to stay away from the potentially crackable 482624 lightweights circa '75, although I know some folks who have had no problems with them.
Anyway, that's the only familiarity I have with them. Works for me!
Did you ever get them?
Anyway, that's the only familiarity I have with them. Works for me!
Did you ever get them?
09-13-2008, 02:51 AM
#3
Drifting
DZAUTO, while these 545 heads are the thick castings that are not prone to cracking like later heads, they have the 76cc open combustion chambers whick kills compression and are more detonation prone (much less quinch) they are in no way like the 60s FI high performance "fuelie" heads. i don't remember for sure but i'm pretty certian the ports are much different than the 60s fuel injection heads (they had "smog" friendly smaller ports as opposed to the big port fuelie heads). in the 70s the heads also had the 3 bolt holes in the ends which will not make them period correct for the earlier cars. i'd say bon't buy them, but that's just me...
PS--> the 461, 462 heads are the old school hot set up. now i have to go post in the other head thread about fuelie heads floating around today...
PS--> the 461, 462 heads are the old school hot set up. now i have to go post in the other head thread about fuelie heads floating around today...
