Senior Tech Team
Join Date: Aug 2002
Location: Gold Canyon, AZ
Re: 5 speed trans for bbc car.
Transmission choice depends on how the vehicle will be used. Overdrive transmission is best choice for a street-driven vehicle, but not beneficial for a drag race-only application. I have had excellent results with Jerico 5-speed, which has a broad range of ratios available for first through fourth gear (fifth gear is 1.00). Remember, when choosing gear rations for this type of transmission to specify the largest ratio spread between first and second gear, with smaller and smaller ratio spreads between second/third; third/fourth; fourth/fifth. This way, you utilize engine torque at lower speeds to accelerate the vehicle.
64 Chevelle Malibu Sport Coupe (original owner) car now has 427" BB, Jerico 5-spd. trans., Dana 60 rear end.
SAE Member (25+ years)
ASE Master Certified Engine Machinist
AERA Certified Professional Engine Machinist