Competition head castings

[83 crew cab]

ok I asked this on produces maybe none of you guys have been there lately does any body know if the the 89 and 94 exh and int ports are the same I have an extra 89 head and use of a flow bench I would like to port the 89 head and see what works the best before I start on the race head anybody know if the ports are the same on the 89 and 94 thanks George

 

[Piers]

The ports on a 89 or 94 are pretty near the same. The 89 will make a good practise head, as it has 9mm injector tip holes, you would not want to use it as your race head.

If you go to the tech section on my web site, you'll get some pointers and pic's of a ported head. www.piersdiesel.com

 

[83 crew cab]

thanks Piers I have check out you sight I was just making sure that the ports were close so that the numbers might be usable thanks again George