72ScampTramp
Scamp Tramp
I cam across a ad today that said Poly 318. Ive never heard of it. Asking price is 150. Its said to be complete. Said its a 1965 motor. Anyone know anything about these?
The "Poly" "A" small block engine came is 3 sizes, 277, 301 and 318. They were built with very strong parts. They also use some "LA" parts. Valve springs, yiming chain, crank etc....
Some performance parts are out there for this engine. Used intakes in 4bbl. and dual 4bbl. can be found in steel factory offerings and aluminum from Offenhauser and Weiand.
New cams can be purchased from Racer Brown. He'll also do a custom cam if you want.
They can be hooked up to modern OD tranny's though some cranks are not ready for it as older versions have different diamentions for the older tranny's. It'll ethier take a crank swap or machine work to get it done.
Mopar muscle had a write up by Gary Polvich who stroked one to 400 cubes and made over 400 HP.
Currently, I knw a few Aussie's working on a new intake manifold fore the engine. A RPM style intake is being developed.
i have heard that the Poly motors shared the same block architecture with the early Hemi's and that the Hemi heads would bolt onto the poly block. is this true???
-Tim
i have heard that the Poly motors shared the same block architecture with the early Hemi's and that the Hemi heads would bolt onto the poly block. is this true???
-Tim
No, the 277,301 and & 318 will not accept a HEMI head though other engines can. In example the old Firedome engines will take a HEMI head easy. It is much like the "LA" and "Magnum" series engines that need abit of everything from the block up.
High end Dodges and Desotos got the hemis. Desoto Firesweeps (like mine) never got the hemi (They were basically a dodge with desoto fins) Chryslers got 'em and no plymouths.
I belive the 57 and 58 plymouth's had a firedome hemi optionHigh end Dodges and Desotos got the hemis. Desoto Firesweeps (like mine) never got the hemi (They were basically a dodge with desoto fins) Chryslers got 'em and no plymouths.