70 LT-1, engine setup
03-04-2003, 01:09 PM
#21
Drifting
Member Since: Dec 1999
Location: Reno nevada
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Re: 70 LT-1, engine setup (73 LS-4)
Anybody that thinks rebuilding a motor with 30+ year old technology has issues! :skep:
Mine has so much more power than stock and overall just a joy to drive for the past 10 some years since I rebuilt it. I went with KB flat tops .030 over good rings & bearings. Fully balanced and blue printed 1 5/8 headers. Port and polished 186 double hump castings with screw in studs and guide plates. 2.02/1.6 Manley race flow valves. 10 degree locks and chromemoly retainers with the Crane 238/248 @ 050 solid lifter cam. It has a nice idle because of the 114 lobe centers and I'm running 1.6 roller tips to get a little more lift out of it.
It's runner with a wide big power band.
Mine has so much more power than stock and overall just a joy to drive for the past 10 some years since I rebuilt it. I went with KB flat tops .030 over good rings & bearings. Fully balanced and blue printed 1 5/8 headers. Port and polished 186 double hump castings with screw in studs and guide plates. 2.02/1.6 Manley race flow valves. 10 degree locks and chromemoly retainers with the Crane 238/248 @ 050 solid lifter cam. It has a nice idle because of the 114 lobe centers and I'm running 1.6 roller tips to get a little more lift out of it.
It's runner with a wide big power band.
03-04-2003, 06:49 PM
#22
Burning Brakes
Re: 70 LT-1, engine setup (Lt1er)
I am running a solid 242/254 .459/.485 116LC, basically LT-1 Cam with 72 cc Sportsman Heads. I am changing over to the aluminum L98 58cc heads as I need more compression to make this cam work. It runs great at the top end, but just needs a little more south of 3000 rpm. Even with the 1972 style compression I still think the LT-1 Cam is a nice piece.
