73 455TA manual car exhaust manifolds
 

Hi all does anyone have a correct listing for manifolds.
I have tried online , Wallaxe site etc but doesn't appear to be a complete listing.
I have a 490142-1 which may he RH, and a 480602, which may ge left but not sure.
Not really too concerned with date codes at this stage, just correct casting as many span quite a few years cheers

Edit, I also have a 9796992 7 as well, which looks the same as the 490142 except it doesnt have the outer bolt holes

Pretty sure 490142 & 490143 are the original numbers for '72 & '73 Firebirds with any V-8 except HO's & SD's.

Ok thanks, will be on the look out for a 143 then, hopefully the other 2 I have for that side will suffice in the interim. It's a long term project

Here are early 1973 (cast 1972) and early 1974 (cast 1973) exhaust manifolds casting numbers.