before you bitch i looked at other threads but couldnt find what i was looking for.

i got a 1986 pontiac trans am, the motor is supposedly a 1972 350 4 bolt main. my question is i wanna spice up the look of the motor same and i purchased a short water pump its aluminum and polished. i want to know if this is the right one i need or do i need a long water pump. any help would be greeat

 

You need the long water pump.

 

for sure, what years fit short water pump

cuz my motor might not be a 72, could be between 72 and 86, are they all long water pumps

also its a 350

 

Every small block from 1969 and up used a long water pump except for the **DRUM ROLL** Corvette. Not sure on what specific years got what on the Corvette though.

Oh, that's not including the reverse rotation pumps or the reverse flow pumps. Those are their own animal all together.

 

Reverse rotation pumps aren't their own animal, they're exactly the same, but with a different impeller.

Passenger car small blocks got the long pump in 1969, trucks got it later, in 72 or something like that.

 

Short water pumps were used on factory models through the 60's. The heads didn't have accessory bolt holes and neither did the water pump. Unless you're building a complete custom application, you're going to want to install a long water pump. The long pump will have the proper bosses and holes on the body to mount accessories such as alternator and power steering pump. What year the engine is doesn't mean anything. It depends on what accessories you're planning on bolting onto it. Any late model car will need a long water pump.

 

"Every small block from 1969 and up used a long water pump except for the **DRUM ROLL** Corvette."


and **DRUM ROLL** the V8 monza, V8sunbird, V8starfire.( Just for you trivia buffs.)