Mopar 318 'High Performance' vs Chevy 327/250 HP ~ 327/275 HP ~ 350/255 HP

Chevrolet 1969 ~ 350/255 HP {Code; LM-1}

Was an early-year only Engine combination for Chevrolet.

Compression Ratio ............ 9.0-1
Pistons ............................ Flat Top w/notches

Cylinder Heads ................ #3932441
Combustion Chamber ....... Factory {76.33 CC} ~ Minimum {73.26 CC}
Valves ............................ 1.94" Intake ~ 1.50" Exhaust

Camshaft ........................ #3896929
Lift ................................ .390" / .410"
Duration ......................... 253* / 264*
Duration @ .050" ............. 195* / 202*
Overlap ........................... 34.5*

Intake Manifold ............... #3927184 ~ Cast Iron Dual-Plane
Carburetor ...................... Rochester 4-MV Quadrajet {730 CFM}

Exhaust Pipe .................... 2.50" {Single-Exhaust}
Exhaust Pipe .................... 2.00" {Optional Dual-Exhaust}