mzr3yt

Does anyone have the full set of specs for the 1969 L71 427 engine including can specs, caburetion, etc?

dgruenke

I don't know the exact cam specs, but the carb was a Holley 850 cfm according to this website... Corvette History

TedH

L71 had 3 deuces.

I have the 69 Chassis Overhaul manual. L71 info found:

Cam - .3057/.3057 Lobe lift at .002 (multiply by stock rocker ratio of 1.7 to determine total lift)

Engine info:
435HP @ 5800rpm
460TQ @ 4000rpm

Bore - 4.25"
Stroke - 3.76"
CR - 11:1
Firing Order (18436572... same as small block)

Carbureator - Holley 2300 part number:
Manual - 3940929 (R-4055-1A) Primary
All - 3902353 (R-3659-A) Secondary
Auto - 3940930 (R-4056-1A) Primary

Float Level - Primary - .350
Secondary - n/a?
Final - use sight plug

Accelerator pump - .015
Idle Vent - Primary .085

Main Metering Jet
Primary - Manual - #63
Secondary - All - #76
Primary - Auto - #61

Pulled this right off the page in the manual...

dgruenke

I guess the internet information is only as good as the person that entered it.

WESCH

Hi



The 850 Holley was installed on the L88 engine.

Günther