Connecting Rod

Chevrolet used many variations of their basic connecting rod over the years. All the rods were similar. Small block rods were 5.70 center length, and all rods produced prior to 1968 had a 2 inch rod journal diameter. All rods from 1968 on, including 1967 350 rods, have a 2.1 inch rod journal diameter. In addition, rods built until May 1967 have V groove holes in the rod cap.
8hspace.gif (810 bytes)All big block rods have a 6.135 center length and a 2.325 inch rod journal diameter.
8hspace.gif (810 bytes)The part numbers for Chevrolet rods are identical for each year Camaro, but there were variations in the rod design with the same number.

Part Number Application
3892670 4 & 6 cylinder except 292
3789421 292
3916399 307, 327, 350
3862720 396, 427, except 427 L88
3942409 427 L88

Listed below are the basic variations for each application.

283 through 1967

327, except high performance

327 high performance

302 (Z/28>

350, 1968-69 307

350 high performance (LT1)

396, 427 except high performance

396 and 427 high performance

427 ZL1

Alternator Axle Camshaft Carburetor
Connecting Rod Crankshaft Differential Distributor
Exhaust Manifold Intake Manifold Piston Transmission
Water Pump      
Chevy-Camaro.com
Chevy-Camaro.com
Chevy-Camaro.com