396 BBC To Keep Or Not?

[Chevymaniac]

A friend gave me a 71 GMC 3/4 ton 4x4 for free. The truck came with a 396 BBC, TH350 mated to a NP205. Motor run on propane. Dana 44 and 14 bolt rear, 4" lift and 33" mudders. Cab and front clip were trashed. I have since gotten rid of them and now have the motor/tranny/transfercase on blocks in my shop. I have been doing some research and need to know if the motor is worth keeping or not. Plan was to throw it into my 72 chevy shortbox stepside that i'am converting to 4x4. I need some advice in which route to go with motor. From what i found in regards to motor is it came out of a 69 car. The numbers found on block did not specify what car though. It is a L35 with @ least 325 HP. Motor is in excellant condition. Thanks in advance for any advice.