I had a B310 with a 'worked' A12. 1287cc, mild cam, GX head, twin 40s, extractors. In full road going spec (ie not stripped out) did 16.6 quarter mile at 82mph. My guess is 9 secs (ish) to 62mph/100kmh.

Are those alluminium seats as uncomfortable as they look?!

I believe the L13 and maybe L14 ran a smaller diametre clutch (same as A series) than L16+.

Quote:

Are these block thicknesses on a standard 76mm bore A14?

It's check valve to maintain brake shoe position. With discs now fitted it should be removed and bypassed.

Pretty sure they're different lengths C110 coupe vs sedan)?

I recall reading that in Cosworth's early years (early 1960s) they achieved something like 110bhp from the humble Ford Anglia 105E engine. This was a 1-Ltr, Non-crossflow head (ie ports all on same side like Datsun A series), cast iron head (unlike Datsun's supierior alloy head), 3-bearing crank ... and on just a single down-draft carbureter! (ie not twin side-drafts). Clearly this would have been a very peaky engine and I think it was fitted to a (no doubt light) single seater of the time.

I believe 200bhp is achievable from an A15 (but certainly not easy or cheap). As to drivability, I believe Rick Bone's 207bhp car is EFI etc which would help considerably vs carbs.

Regarding converting an OD 5 speed to a 1:1 5-speed - it is theoretically possible with a 60L (ie the dog-leg 1st box. The reason for this is that the standard box's 4th/5th shift rod uses a 'flick-over' lever to achieve 1:1 4th where 3rd would usually be in a standard 4-speed. If you eliminate this in a standard box it would swap the position of 4th and OD 5th. Then you use a custom gear-set with what was OD 5th as an under-driven 4th gear followed by 1:1 5th.

Stock pattern & gears)
R-2-4(1:1)
1-3-5(O/D)

Stock gears/mod'd pattern)
R-2-5(O/D)
1-3-4(1:1)

Mod'd gears & pattern
R-2-4(U/D)
1-3-5(1:1)




..... However, I remain sceptical this box has had this done until I've seen a picture of its internals.

Can't see how you can shorten the rocker cover: Most decent cams see std rocker adjusters hitting the cover already (hence raised rocker covers). Imagine you'll be looking at a modded cam to make the most of those carbs.

http://www.trademe.co.nz/Browse/Listing.aspx?id=308146690

Not mine. Must say I'm pretty sceptical. Description matches 56A 1:1 5 speed yet it's a 60 series case. If it really is genuine would be a great box.