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Dan Fahey · 03-04-2020, 02:48 PM

94/96 Impala SS/Caprice 350/260/299 HP LT1 uses a Vortec Iron Head.
1.94/1.50 Valves, Roller Lifters, 72cc Chamber and a F- Body cam at .447/.459 Lift.

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.

LT1 Aluminum Head engines are same with 58cc rated 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, Roller Lifters, 1.6 RR's.
All the important components of a Super Stock Engine.

FWIW Dart made a handful of LT1 Aluminum Blocks.

03-04-2020, 02:48 PM	#11
Dan Fahey VIP Member Join Date: Oct 2008 Posts: 2,128 Likes: 1,084 Liked 184 Times in 113 Posts	Re: 1.20 under at Belle Rose 94/96 Impala SS/Caprice 350/260/299 HP LT1 uses a Vortec Iron Head. 1.94/1.50 Valves, Roller Lifters, 72cc Chamber and a F- Body cam at .447/.459 Lift. 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. LT1 Aluminum Head engines are same with 58cc rated 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, Roller Lifters, 1.6 RR's. All the important components of a Super Stock Engine. FWIW Dart made a handful of LT1 Aluminum Blocks. Last edited by Dan Fahey; 03-04-2020 at 02:55 PM.