What are the stock cam specs, i.e. lift and duration.

 

I think it's 203/207 .447/.459 116.5 but I'm not 100% sure, just doing this off the top of my head.

 

.450 intake .460 exhaust on my '93 Z......

 

I have seen the following specs quoted:
'93-'95 203/207 @ 0.050" 0.450/0.460" 116LSA

I have also seen the spec for the '95 and '96 quoted as:
200/207 0.447/0.459" 117LSA

Not sure how accurate these are though.

Rich Krause

 

Issued: 3 March 1994
Revised: 6-8-98, 8-3-98, 7-1-99, 6-26-01, 01-04-02, 6-11-02,9-11-02
Bulletin #: CHEV-94 Page 1 of 1

Specifications for the 1994 Chevrolet engines.


H.P. Disp. C.R. Ind. Make Model/Transmission Manifold R.R. Lifter Head cc Notes

160 207 9.0 PFI Roch NA 10118661 upper 1.5 H 50.35 1 10137051 lower
200 265 10.7 PFI AC/Roch 12552137,10108630 1.5 H/R 45.5 2
260 350 10.1 PFI AC/Roch 12552138 1.50 H/R 62.0 2
275 350 10.5 PFI AC/Roch NA 10108471,10108629F 1.50 H/R 51.9 2
10108630

Notes
1 - Throttle Bores - 2.52" (64mm)
2 - Throttle Bores - 2 x 1.88" (48mm)


Deck Piston
H.P. Disp. Cl Type Height Vol Valves Cam Lift Springs

160 207 .011 Flat 1720/1415 393/408 Outer w Damp
200 265 .015 Flat w/notches 1840/1500 447/459 Outer w Damp
260 350 .025 Flat w/notches 1940/1500 449/460 Outer w Damp
275 350 .015 Flat w/notches 1940/1500 449/460 Outer w Damp


H.P. Disp. Gasket Head Cast


160 207 .042 14031327
200 265 .025 12529742,10208890
260 350 .029 14088526
275 350 .047 10205245,10128374,10207643,12551561,10207640