73 NCRS question
Thread Starter
Racer
Joined: Apr 2010
Posts: 352
Likes: 1
From: Central NJ
73 NCRS question
Hey guys, I've got a quick question that I cannot find an answer to online or through the forum search. I am working on an NCRS build on my 73 454 4speed car (hopefully top-flight someday but we'll see how this goes). When I bought the car it came with a small block out of a Buick so of course nothing matches and I am slowly piecing things together. I have pieced together most of the accessories but am still missing an alternator pulley. I am currently discussing purchasing one from a very knowledgable member but would like to gather some knowledge myself. Aside from the fact that I require a 3" pulley, is there anything else I should know? Material type, painted or coated, any stamped numbers, etc. Any information regarding this or anything 73 specific would be amazing. Thanks!
Race Director
Joined: Jun 2005
Posts: 10,189
Likes: 206
2018 Corvette of Year Finalist
2017 C3 of Year
NCRS answer= Buy the correct Judging Manuals for your particular model.
CF C3 General Question? Why not ask your question on the NCRS forum?
Surely, someone will check in with your answer!
CF C3 General Question? Why not ask your question on the NCRS forum?
Surely, someone will check in with your answer!
Race Director
Joined: Jun 2005
Posts: 10,189
Likes: 206
2018 Corvette of Year Finalist
2017 C3 of Year
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
AFAIK, it's a stamped steel pulley, don't remember anything special about it. Haven't looked closely at an original LS4 in years so won't guess.
Safety Car
Joined: Nov 2003
Posts: 4,274
Likes: 6
From: Corvetteville USA
Race Director
Joined: Jun 2005
Posts: 10,189
Likes: 206
2018 Corvette of Year Finalist
2017 C3 of Year
I knew you had a sense of humor!
One day, hopefully, I will get to meet, in person, the great protector of the NCRS reputation!
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Hope this helps!
Also...FYI, apparently, a couple of different alternators were used on the LS4 depending on the A/C with power steering options. GM 1100950 (42 amp) with broadcast code RF and GM# 1100544 (61 amp) with code RH. The GM# 1102353 was used on the LS4 42 amp and carried and broadcast code KA. Alternators were mounted upside down so the part numbers could not be read from above.
Last edited by hunt4cleanair; Jan 5, 2014 at 04:27 PM.
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