Wilsons Sandbox

Boring a late TD XPAG out to 1500cc OK, I have acquired a competition XPAG block with casting number 168421. 168421 was used for the Wolseley 4/44, later TD, & TF cylinder block, (see below) so it has no Octagon cast in, and has round water holes on the block cylinder head face(blanked off on this competition block). Annoyingly, It does not have it's brass engine number plate to help matters. It has had a new rebore to 71mm, and has not been linered, so as a TF 1500 block is 72mm bore, I deduce this must be a 1250 TD/TF bored out. My question is therefore whether the 168421 block casting was the one used for the 1500 TF, or was there another, thicker walled block used for this, and how far I might be able to bore this block 168421 out before the pistons become water cooled ! If anyone knows, or has a TF 1500 handy to check their casting number, I'd be pleased to hera from them. Clive For interest, these are the block and head casting numbers I am aware of for the MG/Wolseley/Morris engines: [b]Model/Item Casting Number [/b]

[b] [/b][b]Cylinder blocks[/b]

Early Morris/Wolseley 10 1140cc X cylinder block, oval water holes 22500

Later post war 1140cc cylinder block, oval water holes 24144

Very early 1250cc cylinder vblock with no timing chain tensioner 24001

Early MG 1250cc X cylinder block, octagon cast in, oval water holes 24142 & 24146

Later post war 1250cc MG cylinder block, octagon cast in, oval holes 24445

4/44, later TD, & TF cylinder block, no octagon, round water holes 168421

[b]Cylinder-heads[/b]

Early 1140cc cylinder-head, no centre oil drain, oval water holes 22812

Later postwar 1140cc cylinder-head, same as early 'T' type, oval holes 22952

Later TD, & Y oval hole cylinder head, short reach plug 22952

4/44, TD & TF cylinder-head, round water holes, long reach plugs 168422

Late 4/44 cylinder-head, round water holes 168425

m mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

[img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-round-orange-animated-no-repeat-v1.gif&t=1522511967&sig=GX5E1cHfQKZIIHY270UNYA--~D[/img] Virus-free. www.avast.com