12-20-2012, 01:01 AM
Join Date: Dec 2012
Total Cats: 0
99-2000 head on a 94 block what considerations are there for this swap?
I just got my 1990 Miata. I also picked up a 94 1.8L block and crank both are stock untouched and both spec out fine. I want to run a 99-00 head or go to a 01-04 head I know the 01 up have VVT and I am not sure if I have the tuning skills to tackle that so was considering getting a 99-00 head for now. The 1.6L in the car now needs a head and I got one local from U pull N pay for $75. I am having it redone as the stock head had some cam hold down bolts striped out from previous owner. I am gonna do a turbo build and so here is what I am thinking correct anything you think is not right.
* 94 1.8L block line honed, ARP studs, bored .5mm over,decked just enough to provide a good seal, Torque plate honed to supertech's specs for the pistons below.
* Supertech P4-MA8350-N4 pistons they are 8.5:1 comp.
* Eagle H beam rods with ARP2000 bolts.
*99-00 head with a little clean up in the ports and bowl work.
I was considering a exh,int cam swap but I have looked around on here and some say this year really doe not make that much difference is that true?
So my questions now are what year head gasket to get? I know I have read that this swap works so what other considerations are there? I am gonna get a 99-00 intake and I am building the turbo header. I am getting an after market fuel rail kit and 850cc injectors. and a 255LPH pump I have -6an and -8an fuel lines from my other projects. I have turbo charged V8 cars a 78 VW sirocco, a few messed with and tuned a few dodge 2.2L and 2.5L turbo cars as well as a few DSM's, but this will be my first miata build. So any help or good advice would be nice. I am new to miata's but not new to building cars that said most my experience is with racing classic muscle cars and all out tube chassis drag race cars.
I am going with a mega squirt 2 or 3 or a AEM not made up my mind on that yet.