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Connecting Rod Length Info

Rod Length Connecting rod length is measured between the centers of the big end (journal end) and the little end (piston pin end). Below is a table with stock connecting rod lengths for various engine families.

CHEVROLET V-8 CONNECTING ROD LENGTHS

Displacement Cubic Inches Liters Rod Length(inches)
302 4.9 5.700
305 5.0 5.700
327 5.4 5.700
350 5.7 5.700
350(LT5) 5.7 5.700
350(LS1) 5.7 6.098
383 6.3 6.000
400 6.6 5.565
396 6.5 6.135
402 6.6 6.135
427 7.0 6.135
454 7.4 6.135
502 8.2 6.135
377 6.2 6.135

FORD V-8 CONNECTING ROD LENGTHS

Displacement Cubic Inches Liters Rod Length(inches)
289 4.7 5.1550
302 5.0 5.0900
302(Boss) 5.0 5.1500
302(SVO) 5.0 5.1500
351 W ('69-'70) 5.8 5.9560
351 W ('71-'96 5.8 5.9560
351 (SVO 9.2) 5.8 5.7800
351C (Boss) 5.8 5.7800
351M 5.8 6.5800
429 STD ('68-'70) 7.0 6.6050
429 STD ('70 1/2-'71) 7.0 6.6050
429 CJ/SCJ ('72-'73) 7.0 6.6050
429 Boss (S) 7.0 6.5490
429 Boss (T) 7.0 6.6050
460 7.5 6.6050
281 (modular) 4.6 5.9331
331 (modular) 5.4 6.6575