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MG MGA - Cyl head #'s 1500/1600/1622


Are all the above heads the same and interchange? How does one tell them apart? I have a spare that has 15 cast in, does that mean it only fits a 1500 ?
TTFN Sara
Sara D.

a 15 head will fit 1500 and 1600. 1622 has different pistons, so needs either a 1622 head or an early 1800 head (search the acives or use these links

http://www.mgbmga.com/tech/mgb25.htm
http://www.flowspeed.com/cylinder-ident.htm

I use the 12H1326 head on my 1622 engine - larger valves, better flow, easier to find than an A head. It has a larger chamber size which helps with reducing compressionratio problems on a supercharged engine.
dominic clancy


Thanks Dominic. What does the 15 mean and what head is the 12H1326 from, not an MGA I thake it ?
sara

12H1326 is an early B head (w.o. air injectors) 15 heads are for a 1500 or 1600 engine only. The advantage of the 906 or 1326 heads is that you don't need eyebrows in the block
dominic clancy

This thread was discussed on 22/06/2007

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This thread is from the archive. The Live MG MGA BBS is active now.