Pontiac Ram Air Packages

Pontiac Ram Air Engines/Option Packages

The Ram Air packages were offered in Pontiac models in the late 60s. The basic “Ram Air” packages started with forced air via hood scoops, and expanded from there…

‘Ram Air 0’

This was not an ‘official’ Ram Air package, but was a precursor…
– mid 1965
– GTO only
– add-on kit
— opened up the factory hood scoops
— added a stamped steel pan over carburetors

Ram Air I

Package was simply called ‘Ram Air’; for comparison, we’ll use the ‘I’
– early 1966- 1967
– GTO only
– 400 C.I.D.
– UNDERESTIMATED 360hp/438tq.
– 301/313 duration camshaft
– cast iron headers
– 4.33 axle ratio
– RPO Code ‘L67’ as of 1967
– $263.00 extra cost for the package at the time

Ram Air II

– 1968
– GTO and Firebird
– 400 C.I.D.
– 366hp/445tq. (340hp/430tq. in Firebird)
— above horsepower difference due to throttle restrictor on the ‘Bird
– cast pistons
– 308/320 duration camshaft with .470″ lift
— the first camshaft designed by a computer!
– round port cylinder heads
— Pontiac’s first production vehicle cylinder heads of this type
– 5500 R.P.M. tachometer (vs. 5200 standard)
– 4.33 axle ratio
– Safe-T-Track limited slip unit

Ram Air III
– 1969-1970, standard
– GTO Judge and Firebird Trans Am
– 400 C.I.D.
– 360hp/441tq.
– 301/313 duration camshaft with .470″ lift
– cast iron intake manifold
– cast iron headers
– d-port cylinder heads
– cast pistons
– cast nodular iron crankshaft
– cast connection rods
– Rochester carburetor
– 5-blade variable pitch fan
– 60 psi oil pump
– chrome valve covers
– Posi-Traction limited slip unit
– displacement badging delete
– one-piece air shrouding

Ram Air IV

– 1969-1970, optional
– GTO Judge and Firebird Trans Am
– 400 C.I.D.
– 370hp/445tq.
– 308/320 duration camshaft with .470″ lift
– 1.65 ratio rocker arms, effectively increasing lift to .520″ (vs. 1.5 RA-III)
– round port cylinder heads
– forged aluminum pistons
– “Arma Steel” crankshaft
– 6 lb. crankshaft balancer (vs. 5 lb. standard)
– aluminum intake manifold
– Rochester carburetor
– 60 psi oil pump
– air conditioning not available
– three-piece air shrouding

Ram Air V
note: the RA V is an extremely rare package that never made it past crate status!
– 303 C.I.D. for Trans-Am road racing
— 475-525hp
— had a short deck 40 lbs. less than the 366/400
— tunnel port cylinder heads
— 56cc combusition chambers
— dual quad intake manifold
— pressed-in pushrod sleeves
— forged aluminum pistons
— 4.125 bore / 2.84 stroke
— 2.5″ crank journals
— 8000 R.P.M. redline
— 11 lb. crankshaft balancer (vs. 5 lb. standard)
— extra deep pulleys
— steel safety flywheel
– 366 C.I.D. for NASCAR
— tunnel port cylinder heads
— 67cc combusition chambers
— pressed-in pushrod sleeves
— forged aluminum pistons
— 11 lb. crankshaft balancer (vs. 5 lb. standard)
— extra deep pulleys
— steel safety flywheel
– 400 C.I.D. for street GTOs
— 375hp (street GTO), 355hp (street Trans Am)
— tunnel port cylinder heads
— 67cc combusition chambers
— pressed-in pushrod sleeves
— forged aluminum pistons
— 11 lb. crankshaft balancer (vs. 5 lb. standard)
— extra deep pulleys
— steel safety flywheel

Ram Air VI
– 428 C.I.D.
– meant for drag racing
– single four barrel carburetor
– tunnel port cylinder heads
– 67cc combusition chambers
– 11 lb. crankshaft balancer (vs. 5 lb. standard)

Ram Air VII
– 428 C.I.D.
– meant for drag racing
– dual quad intake manifold
– tunnel port cylinder heads
– 67cc combusition chambers
– 11 lb. crankshaft balancer (vs. 5 lb. standard)

Facebooktwittergoogle_plusredditpinterestlinkedinmail

Leave a comment