This Is A Heavy Duty Timing Chain Kit To Fit The Following:

We Have Everything To Rebuild This Engine,

GM MARINE 454/7.4L OHV V8 16V	Mark VI. 3pc. set. Single roller chain. With roller camshaft. Check center hub on cam sprocket. The hub does not protrude past sprocket face (hub is flush with sprocket face).
GM TRUCK, VAN 454/7.4L OHV V8 16V Chev. 4.250" Bore 71-00	00-00   3pc. set. Single roller chain. All.
GM TRUCK, VAN 454/7.4L OHV V8 16V Chev. 4.250" Bore 71-00	98-00   "B". 3pc. set. Single roller chain.
GM TRUCK, VAN 454/7.4L OHV V8 16V Chev. 4.250" Bore 71-00	99-99   "J". 3pc. set. Single roller chain. Without ZK3. Check center hub on engine side of cam sprocket. Tk3174 hub does not protrude past sprocket face (hub is flush with face)