[Bryn Tirion]

Originally Posted by guymd

I'm not sure if the engines change from time to time, but here are a couple of eBay ads for Chrysler 318 manifolds that may be what you need:

1967 72 Dart Duster Barracuda 273 318 340 Exhaust Manifold Pair Plymouth A | eBay

Dodge 318 Left Exhaust Manifold 1956 1957 1958 Casting 1634445 Hollander 253 | eBay

Both wrong.... the upper one is for the later LA engine, the lower one for the earlier Dodge engine. 1956 is too early for this series.

All this ignorance is due to the secretiveness of the Crook... bunch, who were fitting outdated engines that they bought (no doubt very cheaply) from Chrysler/Plymouth/Dodge, who were at the time changing from the cast-iron Poly A engines to the new LA style. They were doubtless very happy to find someone who wanted to take a bunch off their hands. As it happened, the Poly engine was an excellent unit, with very high power to weight ratio and easy breathing, and American engines were streets ahead of British engines in output.... it was after all one of the grand periods of engine design, in the early 50's to late 60's, where all the developments were coming from the States. That situation changed dramatically in the 70's.