Looking for advice: Buying a remanufactured long block, or rebuild the motor? My 83 K5 came stock with a 305 (which blew three weeks after I bought it because the guy who sold it to me dropped something in the motor and never said nothing about it, subsequently the motor siezed) so I bought a 350 from a buddy and rebuilt it. made a fatal mistake in the rebuild though. Took his word that the crank was good and built the motor without checking the journal diameters for trueness. Motor lasted 6 months and spun the rod bearings. My dilema now is to just say the heck with it and buy a reman long block 305 and put it back to emissions legal status, or rebuild the 350 AGAIN and have to deal with the emissions. The 350 is an early 70's casting and I don't have the necessary exhaust manifolds to install the smog pump and crap. The 350 is also bored 30 over and has small block 400 heads. The motor is prime to be built out as a 383 Stroker, but $$$ is preventing that. The truck is sitting in my driveway right now with no motor in it and two in the garage... Looking for your advice as I am unable to make up my mind on which is the lesser of the two evils. Granted I know there will be a performance hit with the 305, but I won't have the headache of the emissions.......... BTW, 350 had been dyno'd before I bought it at 300+Hp at the crank.