whats thge difference between the 295 and the 940? shouldn't the 940 breathe better anyway? considering it's off a 1275??

A 295 head is good, for a 998 or 1098, but ultimately not as good for power as a 940. I've ported both, as well as 202s and a 1316.
<edit> to run a 940 on a small bore, you need to notch the top of the block to clear the exhaust valves. Unless it has worn valve seats and a stock cam- but who wants that?

295s tend to crack more too- their design was based on the early S heads. Most racing 998s in UK now use a 940 head, but out here (different class) they still run a race ported 295 or 202. Graham Russell has been doing race 202 heads for a while now, his dyno says they are just as good as a 295, after a bit of work.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

DRmini how much for the 940's

and how much work is involved in notching the block? (work=$$) is that to clear the way for larger valves?
would notching drop the Cr and therefore require a skim to up the Cr a bit.

(just trying to be more lernhed)

Michael

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Price of a 940 depends... on lots of things- whether complete or not, modified or not, whether has got all new valves, guides, springs etc.
Anywhere from $150 or so for a bare head, on up.
Ping `kazjim', he has a few for sale cheap, that need doing up.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

No probs.... Drop me an email - I'll shoot some pics back......

Be in the Garage Satuday to take pics, so can get back to you Sat nite......

Dr - I'll stick yours in the back of the Brick on Sunday.......(unless i pike out and bring the Commodore........See how i go with that freakin tailshaft!.)

Cheers
J

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