1970 340 Six Pack T/A Engine Build | Small-Block Mopar Assembly Tips

Keith is back in the shop with a 1970 340 T/A small-block Mopar engine, and this one is for the engine builders who love the details. In this episode, Mopar Keith walks through the careful assembly work that goes into building a 340 Six Pack / Six Barrel engine for a Challenger T/A or AAR ’Cuda-style application. This isn’t a flashy reveal video. It’s the kind of real shop work that matters when you want an engine to seal properly, oil correctly, and survive after it leaves the stand. Keith covers his process for fitting the timing cover, installing the balancer without hammering it on, checking water pump housing bolts and bracket fitment, dealing with casting flash, dry-fitting the oil pump, pickup tube, windage tray, and oil pan, and choosing gasket sealer for small-block Mopar builds. He also gets into the difference between oil pans, T/A valve covers, 915 cylinder heads, lifter prep, rocker shaft oiling, head gasket orientation, ARP bolt lube, and pre-lubing the engine before it goes on the test stand. If you’re into Mopar engine restoration, 340 Six Pack engines, Challenger T/A builds, AAR ’Cuda details, or small-block Chrysler assembly tips, this is a deep-dive shop episode worth watching. Drop a comment with your own small-block Mopar engine assembly tips, tricks, or lessons learned from the hard way.