hi. what will be the better choice for my 3dr track car? use a 2wd head or a 4wd one with 2wd water piping? and what exhaust manifold shoud i use 2wd one or 4wd?


chears Yogi

 

depends on what pistons you are using and what head!.

4x4 pistons have a lower compression ratio than 2wd pistons, as the 4x4 head has smaller combustion chambers than a 2wd.
late spec 2wd head/4x4 head is better, early 2wd heads are fine but more prone to blowing head gaskets on exhaust side,.

Depends on how much power you intend to run though, as for manifold
the 2wd is designed for midrange to top end power,
where as the 4x4 is designed to keep lag low and increase low down torque.

 

thanks for your reply. where can i see that i have an early or late spec 2wd head?

 

https://passionford.com/forum/techni...-4x4-head.html