hi all just wondering obout a conversion i need a na motor for my 73 4 door sedan and iv been reading alot about it (yes iv founs the search botten) and read that the sr series is a beter na motor that the ca18 na but is harder to fit and was wondering whether this is true or not.
Besides that the sedan has got 120y front struts and sway bar on kingsprings and the rear leafs have been reset and the car is siting very nicely i also have a series 3 bluebird diff i read some where that they were lsd but there not other that that and the 5 speed behinde the stock a12 there is nothing done to this car any sugestion to improve this car would be greatly apreciated and any other coments about the motor would be great as well.

Nathan

sr has more torque and power but is a larger mass over the front end than the ca.
either will get the 1200 moving but so will an a15.
All depends what you are using it for.

well i want to be able to take it to the drags and race it and come out with a resnable time but i also want a daily driver are the sr harder to swap than the ca's or not