The 70 383 4bbls are the same with the following exceptions: 330 Carter AVS 4734 & 4736 Manual trans 4732 Auto 335 Holley 4160 4217, 4367 Manual 4218, 4369 Auto 330 Cam same as 290 Cam both valvesprings w/o damper 335 Cam same as 375/440 and valve spring w/ damper 330 had no windage tray where 335 did.
The 5hp difference had nothing to do wth the carb. The switch to Holley was I beleive partly a racing decision. The mid classes in stock and super stock, between where a 440 would fit and a 340 would fit were still GM's domain. By putting the piston below deck, as opossed to the 68/69 above deck, you could actually fit a cam worth a darn and the Holley carb is bigger and more tunable.
Quote: The windage tray was welded to the oil pan...yes?
The windage tray was an add on piece btween the oil pan a nd block just like the ones they still sell. Also some was said about 440 heads bolted on the 383. There were no different 906 heads. They were all the same, 383 2bbl. all the way to the 440 Six Pack.
Last edited by sixpackbee; 04/04/0809:37 AM.
1959 Bugeye Sprite 1967 Charger Black L code 1967 Coronet R/T Convert Green 440 auto bought from original owner 1968 Charger R/T Bronze 440 4 spd console AM/FM 1969 Super Bee WM21H B5 A40 D21 N96 1969 Barracuda Formula S 340 Convert pilot car 1969 Hemi Road Runner RM23J D32 Omaha orange 4.10 Dana N96 N85 1970 Super Bee WM23N FE5 V1X 3.91 axle package, N96 1970 Road Runner RM21N B3 V1X D13 1971 MG Midget 1971 Road Runner RM23H GW3, A57 1972 Road Runner RM23P FY1, D21
