OK I need some trans help!
Thread Starter
Intermediate
Joined: Oct 2013
Posts: 37
Likes: 0
From: Bennington NE
OK I need some trans help!
Just updated the motor and exhaust on my 75, but what is the best tranny and gear set for accel and power? Not doing too much highway driving so that's not too much of a problem. is the 350 or the 400 better? it has the 400 now with everything stock. But I heard the 400 saps more power than the 350 does?
engine... Put on new heads, intake, carb, cam, headers and exhaust.
I know I need a new convertor, I heard smaller diameter and higher stall, but what diameter would be good? You guys have obviously been around vettes a lot more then I have so I figured experience tells all!
So any help would be great!!!
engine... Put on new heads, intake, carb, cam, headers and exhaust.
I know I need a new convertor, I heard smaller diameter and higher stall, but what diameter would be good? You guys have obviously been around vettes a lot more then I have so I figured experience tells all!
So any help would be great!!!
2026 Loser of the Year
Joined: Sep 2013
Posts: 36,582
Likes: 7,020
From: New Or-leens Loo-z-anna
Rookie here......if you're concerned about losing power thru the transmission---the forum members will probably tell you to put a manual transmission in it/2nd choice---rebuild the A/T with an upgrade kit designed for your style of driving.
Le Mans Master
Joined: Oct 2010
Posts: 6,930
Likes: 845
From: melbourne florida
2023 C3 of the Year Finalist - Modified
stick with the turbo 350 they can be built to hold insane power levels, finding a good converter is easy, i always liked ATI, Jim's people make some of the best stuff out there and have for decades. there are others that are very good too.
Drifting
Joined: Jun 2012
Posts: 1,990
Likes: 183
From: Port St. Lucie Fl
to pick a converter we need cam specs, same for gears. The 400 saps more power due to it being heavier duty, that being said yo have the 400 already if it is in good working order Id just run it unless you are racing some type of spec class.
Thread Starter
Intermediate
Joined: Oct 2013
Posts: 37
Likes: 0
From: Bennington NE
cam specs
cam specs from edelbrock
Operating Range 1500-6500 RPM
Duration Advertised 308° Intake/318° Exhaust
Duration @ .050'' 234° Intake/244° Exhaust
Lift @ Valve .488'' Intake/.510'' Exhaust
Lift @ Cam .325'' Intake/.340'' Exhaust
Lobe Separation Angle 112°
Intake Centerline 107°
Intake Timing @ .050" Open 10° BTDC
Close 44° ABDC
Exhaust Timing @ .050" Open 59° BBDC
Close 5° ATDC
Edelbrock 350-7102
Intake Valve Lift (in.)0.488Exhaust Valve Lift (in.)0.51RPM Range1000-7000Int. Duration @ .050 in. (Deg)234Exh. Duration @ .050 in. (Deg)244Int. Duration Advertised (Deg)308Exh. Duration Advertised (Deg)318Engine Make/SizeChevy Small Block (262-400)Lifter TypeHydraulic Flat TappetUsageStreet/Performance
is that good?
Operating Range 1500-6500 RPM
Duration Advertised 308° Intake/318° Exhaust
Duration @ .050'' 234° Intake/244° Exhaust
Lift @ Valve .488'' Intake/.510'' Exhaust
Lift @ Cam .325'' Intake/.340'' Exhaust
Lobe Separation Angle 112°
Intake Centerline 107°
Intake Timing @ .050" Open 10° BTDC
Close 44° ABDC
Exhaust Timing @ .050" Open 59° BBDC
Close 5° ATDC
Edelbrock 350-7102
Intake Valve Lift (in.)0.488Exhaust Valve Lift (in.)0.51RPM Range1000-7000Int. Duration @ .050 in. (Deg)234Exh. Duration @ .050 in. (Deg)244Int. Duration Advertised (Deg)308Exh. Duration Advertised (Deg)318Engine Make/SizeChevy Small Block (262-400)Lifter TypeHydraulic Flat TappetUsageStreet/Performance
is that good?
