Remember the 400 only has a 2.48 1st gear too so you'll want at least 3.55-3.73 with a heavy truck and a big stall. You really don't wanna be in the "loose" RPM range of the converter at 45 MPH.
Remember the 400 only has a 2.48 1st gear too so you'll want at least 3.55-3.73 with a heavy truck and a big stall. You really don't wanna be in the "loose" RPM range of the converter at 45 MPH.
Originally Posted by GasGuzzler
dont want that kind of gearing with boost...i want it to stay in there as long as possible...small turbos meth and spray will make up for the loss in the bottom end if i need it
2006 silverado SS....Clifford Jr...turbo coming soon
1970 Chevelle ly6 swap....d1 coming soon
So with a 3.55 gear what mph would the 1-2 shift be at? 2-3 shift? sorry, I'm lazy.
30' Ford Model A Tudor Sedan - Custom chassis - Big bore LS2 - twin B76's - Glide - 9" w/ 3.07 gears - 30" DR tire - 2k lbs cruiser
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