Type 4 Crankcases
This page was last updated Tuesday, September 15, 2009
If you have just purchased a Type 4 engine and are curious what size it is (originally) and what features that engine came with from the factory, this is your page.
To successfully identify your engine, you need to find your engine code and serial number. The code is generally one or two letters, and the serial number will follow it. You'll find these in one of two locations. This is an either/or situation: you'll only find in one of the locations pointed to on this picture.
| 1.7 series (1679cc or 102.4 cu.inches) | ||||
| Case Prefix | Original Application | Compression Ratio | Horsepower / Torque | Notes / Comments |
|---|---|---|---|---|
| V | 1969 VW 411 | no information | 68hp | Frequently confused with the VO series cases, which are magnesium based. Very rare. |
| VO | Type 127 industrial engines. | no information | no information | Frequently confused with the V series cases, which were used in the '69 411. The VO case is magnesium based and is not suitable for an upright conversion or for high performance. Many of the same problems as a Type 1 case. Very rare. Please note the case code is the letter "O", not the number "0". |
| W | 1971
VW 411 1970-71 VW / Porsche 914 |
8.2:1 | 80hp@4900rpm | D-Jetronic fuel Injection(f.i.) |
| Z | '69-'70 VW 411 | 7.8:1 | 68hp | Dual-carb, auto. trans. |
| CA | no information | no information | 66hp | no information |
| CB | 1972-73 VW Transporter | 7.3:1 | 63hp@4800 81 ft-lb@3200 |
Dual-carb, manual trans. |
| CD | 1973 VW Transporter | 7.3:1 | 59hp@4200rpm 83 ft-lb@3200rpm |
Dual-carb, auto. trans. |
| EB | 1973
VW 412 1973 VW / Porsche 914 |
7.3:1 | 72hp@5000rpm | California Model, L-Jetronic f.i. |
| EA | 1972-74
VW 411 / 412 1972-73 VW / Porsche 914 |
8.2:1 | 80hp@4900rpm | D-Jetronic |
| 1.8 series (1795cc or 109.5 cu.inches) | ||||
| Case Prefix | Original Application | Compression Ratio | Horsepower / Torque | Notes/Comments |
|---|---|---|---|---|
| EC | 1974
VW 412 1974 VW / Porsche 914 |
7.3:1 | 76hp@4800rpm | Calif. Only, L-Jetronic f.i. |
| ED | 1975 VW Transporter | 7.3:1 | 67hp@4400rpm 90ft-lb@2400rpm |
L-Jetronic introduced on all Transporter models |
| AN | VW / Porsche 914 or '74 412LS | 8.6:1 | 85hp@5000rpm | L-Jetronic f.i. on the 914 and dual 40mm single barrel carbs on both 914 and 412 in Europe. |
| AP | '74-'75 VW Transporter | 7.3:1 | 68hp | Only sold in Europe. Came with dual carbs. |
| AT | '74 VW 412 | 7.3:1 (maybe higher) | 75hp | Only sold in Europe. Came with dual carbs. |
| AW | 1973-75 VW Transporter | 7.3:1 | 65hp@4200rpm 92.4 lb-ft@3000rpm |
'74-'75 models with auto. trans. used L-Jetronic f.i., otherwise dual carbs. |
| 2.0 series (1971cc or 120.2 cu.inches) | ||||
| Case Prefix | Original Application | Compression Ratio | Horsepower / Torque | Notes/Comments |
|---|---|---|---|---|
| GA | 1973-74 VW / Porsche 914 North American Model | 7.6:1 | 95hp@4900rpm | 3-intake studs, D-Jetronic f.i. |
| GB | 1973-76 VW / Porsche 914 | 8.0:1 | 100hp@4500rpm | 3-intake studs, D-Jetronic f.i. |
| GC | 1975-76 VW / Porsche 914, North American Model, Porsche 912 | 7.6:1 | 88hp | 3-intake studs, D-Jetronic f.i. |
| GD | 1976-77 VW Transporter | 7.3:1 | 67hp@4200rpm 101ft-lb@3000rpm |
L-Jetronic f.i., solid lifter |
| GE | 1978-1979 VW Transporter | 7.3:1 | 67hp@4200rpm 101ft-lb@3000rpm |
'79 model year has unique exhaust ports that may not work with most aftermarket exhaust systems. '78 model year introduced hydraulic cam followers |
| CJ | '76-'79 VW Transporter | no information | 70hp | European market, solid lifter. dual carb, |
| CU | 1980-83 VW Vanagon | no information | 70hp | enclosed breather tower. Identical to the CV case, but used dual 34PDSIT carbs. |
| CV | 1980-83 VW Vanagon | 7.5:1 | no information | This case is only suitable for conversion with a 911 fan. The tower will need to be machined down. Used Bosch fuel injection |
| Misidentified Engines Engines commonly mistaken as a Type 4. |
||||
| Case Prefix |
Original Application |
Displacement | Notes/Comments | |
|---|---|---|---|---|
| CT / CZ | 1980-82
VW Vanagon, European market only. |
1600cc | European case only. Kind of a severely modified Type 1 case. Had problems with cooling and cam followers. Used cooling system similar to Type 4, but not interchangible. Uses Type 1 heads. Crankcase is basically a Type 1 with cast in oil filter flange (like a Wasserboxer). The CZ engine featured dished pistons to reduce compression ratios. For more information. | |
These tables are by no mean the most thorough listing, but it is a representation of my years of research of Type 4 powered vehicles. I'd would like to hear from you if you have some information not listed here. Email me and I'll add it to my archives.
