Here is some great info on case differences by Jake Raby...
https://www.youtube.com/watch?v=siPS_EBLxLY
Type 4 case differences
-
72Hardtop
- Old School!
- Location: Seattle, WA./HB. Ca./Shizuoka, Japan
- Status: Offline
Type 4 case differences
1972 Westy tintop
2056cc T-4 - 7.8:1 CR
Weber 40mm Duals - 47.5idles, 125mains, F11 tubes, 190 Air corr., 28mm Vents
96mm AA Biral P/C's w/Hastings rings
42x36mm Heads (AMC- Headflow Masters) w/Porsche swivel adjusters
71mm Stroke
Web Cam 73 w/matched Web lifters
S&S 4-1 exhaust w/Walker 17862 quiet-pack
Pertronix SVDA w/Pertronix module & Flamethrower 40K coil (7* initial 28* total @3200+)
NGK BP6ET plugs
002 3 rib trans
Hankook 185R14's
2056cc T-4 - 7.8:1 CR
Weber 40mm Duals - 47.5idles, 125mains, F11 tubes, 190 Air corr., 28mm Vents
96mm AA Biral P/C's w/Hastings rings
42x36mm Heads (AMC- Headflow Masters) w/Porsche swivel adjusters
71mm Stroke
Web Cam 73 w/matched Web lifters
S&S 4-1 exhaust w/Walker 17862 quiet-pack
Pertronix SVDA w/Pertronix module & Flamethrower 40K coil (7* initial 28* total @3200+)
NGK BP6ET plugs
002 3 rib trans
Hankook 185R14's
-
Amskeptic
- IAC "Help Desk"
- Status: Offline
Re: Type 4 case differences
T4 Oil Return Case.jpg[/attachment]A significant difference not mentioned is the later cases with the oil pump return cast into the case itself from the relief valve bore to the oil pick-up gallery. You can see immediately if you have it.
Colin
Colin
- T4 Oil Return Case.jpg (1.37 MiB) Viewed 617 times
BobD - 78 Bus . . . . . . . . .115,063 miles
Chloe - 70 bus . . . . . . . . 219,045 miles
Naranja - 77 Westy . . . . . 185,060 miles
Pluck - 1973 Squareback . . 55,630 miles
Alexus - 91 Lexus LS400 . . 99,705 miles
Chloe - 70 bus . . . . . . . . 219,045 miles
Naranja - 77 Westy . . . . . 185,060 miles
Pluck - 1973 Squareback . . 55,630 miles
Alexus - 91 Lexus LS400 . . 99,705 miles