astro van ?blazer 4.3

[cloneman315]

i thought they were the same anyone ever hear this?my friend tells me that the blzer and the astro engines are different water pump or something about counterclockwise rotaion coolant flow etc ?

 

[SY2455]

Re: astro van ?blazer 4.3

It depends on the year. 1991 Astro H/O had a diff cam and heads. Most of the later stuff was the same as long as you have the same fuel injection system.

 

[cloneman315]

Re: astro van ?blazer 4.3

no its 99

 

[SY2455]

Re: astro van ?blazer 4.3

I think they are all the same. The only diff may be in the water pump and or accessory mounting brackets. The diff with the water pump would have to do with heater hose fit as everything else is the same including pump rotation.