Rear Gear Question

impstocker · 09-25-2013, 10:33 AM

This is a great thread for me as it answers basically my same question. I am building a 1965 Impala with the 396/325 BBC combo for I/SA at 4100 lbs. I will be using the same motor from my 68 Impala I ran but that was a Stickshift car (Jerico) I will be running a Turbo 350 w the 2.75 first. I will be using the rear from the 68 which has 4:88's in it. I do have a set of 4:56 which I thought might be better with the Turbo 350, but i think I will stick with the 4:88's at first. I have heard the same thing going as high as 4:30's, but i feel with the weight of the car the 88's will be better.

I think my best 60' time was a 1.60 with the 68' , but I feel I never got the clutch set-up right (Mcleod Rev-Lok) I did MPH pretty good (114-117 MPH ) that was at 6600 RPM through the traps, so I am hoping with the automatic I can see the full potential of this combination, seeing that the index is 2 tenths quicker than when i last ran! (I ran 11.70's with the 68)

Any input this way would also be appreciated.
Will Lamprecht
Div 1, 65 imp big ole chevy

l

09-25-2013, 10:33 AM	#12
impstocker Member Join Date: Dec 2008 Location: Wingdale, NY Posts: 302 Likes: 27 Liked 53 Times in 16 Posts	Re: Rear Gear Question This is a great thread for me as it answers basically my same question. I am building a 1965 Impala with the 396/325 BBC combo for I/SA at 4100 lbs. I will be using the same motor from my 68 Impala I ran but that was a Stickshift car (Jerico) I will be running a Turbo 350 w the 2.75 first. I will be using the rear from the 68 which has 4:88's in it. I do have a set of 4:56 which I thought might be better with the Turbo 350, but i think I will stick with the 4:88's at first. I have heard the same thing going as high as 4:30's, but i feel with the weight of the car the 88's will be better. I think my best 60' time was a 1.60 with the 68' , but I feel I never got the clutch set-up right (Mcleod Rev-Lok) I did MPH pretty good (114-117 MPH ) that was at 6600 RPM through the traps, so I am hoping with the automatic I can see the full potential of this combination, seeing that the index is 2 tenths quicker than when i last ran! (I ran 11.70's with the 68) Any input this way would also be appreciated. Will Lamprecht Div 1, 65 imp big ole chevy l