Quote:
Originally Posted by Dan Fahey
94/96 Impala SS/Caprice 350/260/299 HP LT1 has a Vortec Iron Head.
1.94/1.50 Valves, 72cc Chamber and a F- Body cam at .447/.459 Lift.
LT1 Aluminum Head engines use the same Cam and Valves at 58cc.
Posted with more HP.
LT4 Aluminum Heads have 1.60/1.55 Valves with 1.6 Roller Rockers.
Seeing two cams one at .476/.479 lift, and .525/.525 Lift (Hotcam)
Suspect the Hotcam LT4 is the one rated at 358 hp.
This would be the 1996 Corvette.
Aluminum LT4 Heads, matching LT4 Intake, 1.6 RR's.
All the important components of a Super Stock Engine.
94/96 Caprice run in J/SA at 3708 lbs, natural K car
Impala SS run K/SA at 4057 lbs
Natural L car at 4207 lbs
Weighted for M at 4356 lbs.
FWIW Dart made a handful of LT1 Aluminum Blocks.
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No the LT-4 is not the one rated at 358...
Your standard LT-1 is
I don't even think the LT-4 is an accepted combo. Not real sure about that though.....