[SVTmach]

Im planning on buying a 69 mach 1 and cant decide on whether I want the 390 or the 428CJ Which one will be more mod friendly? Im not gonna make a strait out race car with this car but want it to perform like hell when I want it to Any opinions will be greatly appreciated.

 

[allthrottlenobottle]

428 all the way. many many parts will interchange with this motor, and with the 428 you will have PLENTY of TORQUE all of the time.

Rusty

 

[Kato Engineering]

some of the 390 blocks cannot go safely to the larger 428 bore.

 

[vanace]

not even a question. The 390 ist to the big block fords as the 396 is to the chivy big block... performs ok.. but not nearly what a 428 CJ does. The 428 is plenty mod freindly and is very streetable. Just find one for a good price though lol.

 

[SVTmach]

thanks for the feedback guys I believe Ill go with the 428CJ I just heard some good things about the 390 and was wondering how it stacked up to the 428. Again thanks for the info.

 

[allthrottlenobottle]

There is NO comparison to the 428CJ. There are many,many aftermarket parts availabe for the 428 and 428CJ. Alll you really need is a good carb, single plane intake and a good cam, and then hold on, It is some what like driving an 03-04 Cobra with a pulley.

Rusty

 

[SVTmach]

There is NO comparison to the 428CJ. There are many,many aftermarket parts availabe for the 428 and 428CJ. Alll you really need is a good carb, single plane intake and a good cam, and then hold on, It is some what like driving an 03-04 Cobra with a pulley.

Rusty

:leghump: Then I will definetly have to go with the 428CJ. Ive seen some pullied 03/04 cobras run and good god they haul @$$ I cant wait to get this ride now....planning on aquiring the car this fall. there are a lot of good shows in georgia that have a good collection of 69 mach 1's for sale for good prices!!!!

 

[allthrottlenobottle]

You will ONLY run into 1 problem, LOTS OF TIRE SMOKE!!! LOL!!!!

Rusty

 

[SVTmach]

:leghump: Dont you just hate when that happens LOL

 

[thesource]

The 428 should be plenty for you .

 

[Rjjohnson]

I have a 1969 cj motor balanced and blueprinted needs balancer flywheel and timing chain cover make an offer

 

[Rjjohnson]

429 cj that is

 

[Popeye]

Only problem is that ,,, this is a 13 yo thread.

Sent from my SM-G965U using Tapatalk

 

[Rjjohnson]

Yeah I noticed that afterwards sorry...lol. Hope that build came out badass for you. Ya know anyone looking for a balanced and blueprinted 69 CJ engine?

 

[Rjjohnson]

I have a 1969 cj motor balanced and blueprinted needs balancer flywheel and timing chain cover make an offer

Yeah I noticed that afterwards sorry...lol. Hope that build came out badass for you. Ya know anyone looking for a balanced and blueprinted 69 CJ engine?