Can anybody give me the speCs for the 427 l88 Camshaft thanx.

Part # 3925535, Dur.@ Lashpoint I/E 332/333, Dur. @ .010 298/300, Dur @ .050 264/270, Lift .536/.554, Lash .024/.026, LSA 112, Opening Point I/E 50 BTC/96 BBC, Closing Point I/E 102 ABC/57 ATC

Well there were a couple of them , Crane offers a " Blueprint " version of the GM 3925535 camshaft... The Crane number is 968561.

Lift................560/.580
Dur @ .050....264/269
LSA= 112
Timing @ .050 = IO 24 - IC 60
........................EO 70.5 - EC 18.5
Lash ... .024/.026 Hot.

Hey 69Larry,

Looks like we were typing at the same time !

I think it was simultaneous!

hey 69larry where did u get them speCs from thought the lift was a little higher than that.

Larry's lift figures are "Net", subtract the lash .024"/.026" from the gross lift of .560"/.580" and you get .536"/.554". This is what the engine really sees.

HD, Those specs came from a 1991 edition of the Chevrolet Power Manual. David is right, those valve lift specs are "net", not gross.

What static compression did the L-88 use? That's a honker of a cam and I'd like to build one with a solid roller and about 12:1. I think I can do it with less duration, more driveability and more power.

Maby this link can giwe you any help:

http://corvetteactioncenter.com/specs/l88/l88engine.html

There are 2 the 535 closed chamber cam that has been discussed and the ZL-1 L-88 180 open chamber cam. If you have enough compression the 535 can be run on the street but the 180 is almost useless for anything includeing serious bracket racing.

The L-88 was both 12.5 to 1 and 12 to 1 CR. depending on years. I think the higher number was due to closed chambered heads and the lower number was with open chambered heads.

pdq67