6 replies to this topic

[P1GLT]

Trying to identify engine block size (has a different head and no engine tags). Have found a code MOWOG A29M6 on the back just below exhaust. Does that mean anything to anyone?

[Chris1275gt]

https://mossmotoring...mystery-solved/

[nicklouse]

Do you have a photo of the area of the block with marking? And a photo of the complete front and back?

[P1GLT]

Do you have a photo of the area of the block with marking? And a photo of the complete front and back?

ka pai. Here's the marking and an overall engine shot - it's still in the car so hard to get a good photo of front / back.

Attached Files

•  87F44A54-397D-42EF-8A4F-DEDAD4250AE1.jpeg   45.34K   9 downloads
•  C1D3DCE9-6D6A-49A1-B5EC-E326BB2ACDCE.jpeg   44.96K   8 downloads

[62S]

A29M6 is the date code of the block casting not a part number. Judging by the cylinder head it looks to be a small bore unit - probably a 998.

[nicklouse]

850 or 998 or 1098 A series.

[Cooperman]

It has rear cam chest covers, so initially and from this it can be an 848, 997, 998, 970, 1071, 1098 or 1275.

oHowever, it is not an 'S' block because it only has 9 head studs, so,as Nick says, that makes it 848, 997, 998 or 1098.

To find out which, measure the stroke from BDC to TDC using a pencil down a plug hole.

Edited by Cooperman, 14 November 2022 - 11:05 PM.