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Compression ratio is lower on the 740 for definite (9.8:1 f4r736 >11:1 f4r 736) The cylinder head will be the same mate, but the shapes of the ports will be different, and potentially their position. All the cylinder heads are from the same casting you see. Cams will be not quite so wild either...
The bolts are M5 stainless steel in the one I've seen that's failed. As I'm sure your probably aware, stainless steel is not designed for high tensile applications.
Your better off with a gearbox rebuild imo. Re-use the plate just use high tensile M5 countersunk bolts and loctite. That's all...
That's the downside of running a gripper and lower cw&p unfortunately mate. It's all about the trade offs. You ideally want a long 1st gear to get the car moving and up to some decent speed, then the remaining gears nice and close to keep the car in the power band.
Ooh ooh!! If you do that you could bring it round to mine and we could build mine and yours up at the same time!! Like 2 little homosexuals!! Pmsl!! No kissing though. The dog will get jealous. (As in the spaniel! Lol)
What races you thinking of doing as well? I'm available for general verbal...
It's not a straight swap I'm afraid. You need to drill and tap the cylinder head for some of the mounting bolts (1 I think off the top of my head) and if it's the same as a 197 inlet the ports in the manifold are higher up. You need to do some serious porting to make it work. By the time you've...
Hi mate. I'd have to make the call to gripper, but it's whatever's available from them mate. Your probably as well with the lowest one they do as you don't need the top speed.