Suffix Code?
Thread Starter
Burning Brakes
Joined: Feb 1999
Posts: 1,057
Likes: 12
From: Patagonia Arizona
Suffix Code?
I have located a 66 Chevelle SS396 with a NOM big block that I can't identify. The casting is 3999290 which Mortec says is a 68-72 396 or 402. It is either a truck or pass motor. The stamped numbers on the front of the block are T0401CTB. I can't find the "CTB" listed anywhere. I don't have the block casting date yet. All my reference material is for pass cars, is this a truck motor? Thanks!
Tech Contributor
Joined: May 2005
Posts: 15,576
Likes: 118
From: Conroe Texas
A google of that casting number and "CTB" turns up this
http://www.camaros.net/forums/showthread.php?p=889924
Check post number 4 in the above thread, looks like 72 Camaro/Chevelle big-block
http://www.camaros.net/forums/showthread.php?p=889924
Check post number 4 in the above thread, looks like 72 Camaro/Chevelle big-block
Le Mans Master
Joined: Feb 2006
Posts: 6,048
Likes: 5
From: "cutesy" TN
Look here: http://www.teufert.net/bbchevy/bbcodes.htm 
1972 CTB Camaro 396 240 TH AR
1972 CTB Camaro 402 240 TH AR
1972 CTB Chevelle 402 240 TH AR
TH = automatic (turbohydro)
1972 CTB Camaro 396 240 TH AR
1972 CTB Camaro 402 240 TH AR
1972 CTB Chevelle 402 240 TH AR
TH = automatic (turbohydro)
