Working on a 1200 sedan working the stock a12 and currently auto planning to changing to manual what should I use ?
Would like a 5speed but if a four speed would get more out of the engine happy to go a four speed

What driving to you plan on doing? I found a marked improvement when I upgraded to my 5 speed on the open road as it was obviously quieter, long trips were more fuel efficient, and all round it just seemed easier to cruise with. The 4 speed is a bit lighter, better on fuel in and around town, and more vroom vroom to the tarmac. You thought about going the A15 route by chance? I did, never looked back. More bang, great little upgrade, and still an A series engine

- Braasy

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1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread

Well this is my first Datsun and still in research on what running gear I'm going to upgrades I am going to do, I do want to have this car as a daily but also to still move when I out my foot down and have some fun in, after all the advice and knowledge possible

It will be driven like I hate it

In that case, you'll want to upgrade the box haha

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1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread

What would be a good upgrade suitable for the a12
Btw you've got a nice car haha

R30 ?

hey man,

If you want a gearbox that'll bolt straight up that has 5 gears expect to pay close to 1000 dollars for one, as the a series 5 speeds are quite rare. I have heard of a few people modifying old celica 5 speeds to fit behind A series engines. I did a manual conversion on my 120y a few years ago and used a 4 speed 60 series, it has been flawless. You will struggle to blow a 60 series with just an a12, they are also still around for under a hundred bucks. Whatever you use you will be happy to ditch that power sucking auto.

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The 120y is a gateway Datsun.

that's so refreshing to hear. Yes datsuns are rare and old but one of the best things about these cars are just how resilient they are. PLUS if you are driving a stock a12 and want to get close to anything that resembles "speed", you have to drive it like you hate it

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The 120y is a gateway Datsun.

Seconded. Quite hard to find an A-series 5 speed for a decent price, even more so one that doesn't require hundreds of bucks to rebuild... I was fortunate enough to pick mine up for $350 (NZ) in great working order.

Regarding the Celica box, the model some people have used as an alternative is the Toyota T50 transmission. They can also be found in some Corollas too. They don't just bolt in unfortunately (has a different bolt pattern for the bell-housing), but could be a viable alternative if you can source/manufacture your own adapter kit.

- Braasy

_________________
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread

Do you reckon there would be a market for a conversion kit to adapt L-series 5 speed to the A-series ? Say, a modified bellhousing and input shaft for people to swap into an L-series box ?

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1970 ex Group A Rally P510
1971 P510
1972 180B SSS
1965 SP310 Fairlady
1966 SP311 Fairlady

ive found an original nissan 5 speed for the datsun reconditioned asking $1000 but looking up the 60 series are looking pretty good and cheap, im not keeping the car perfectly original so I think the 60 series maybe the right choice thanks for the advice.

decided that engines coming out, if I put a a15 in since its an a series still going about having it enginered would I have a problem ? and what sort of price goes with that ? this is my first build and preety clueless about alot still

If I understand what you're asking, the A15 is not the stock standard engine, so I would assume you will need to get it complied. Although, you could try and get away with it. The cops would need to know their stuff and be able to pick up the difference in size/height of the head and know to check for the engine model stamp on the block (usually gets covered up with grime over time). I poured roughly 5 grand into my A15 rebuild, and that was with mates rates...

- Braasy

_________________
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread
1972 DATSUN 1200 (B110) 4 DOOR SEDAN << Check Out My Build Thread

yeah I think il just try and get away with it, is it an easy conversion ? or is it a bit of trouble if it is I would rather go ahead and put an sr20de I have an rx2 coming very soon so not planning on spending a million dollars so ive set my self $5000 limit for the engine,box etc.
a good daily that if I put my foot down its gonna move and not be a nugget