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BDiggity 05-10-2008 04:06 PM

Engine parts help
 
1 Attachment(s)
have a 91 Hawk 525. Anyone know the B&M blower & Holley carb they put on these? Looks like maybe a 250 blower? Not sure on the carb.
I want to buy some replacement gaskets to take down next weekend. Looks like B&M was bought by Holley so not even sure where i canget replacement gaskets. Holley only has Weiland listed now.
Hoping to find out before getting down there as im not sure any shops will have what i need once i get it apart.

Chris Sunkin 05-10-2008 04:08 PM

I believe it's the 420 on that motor.

BDiggity 05-10-2008 05:13 PM


Originally Posted by Chris Sunkin (Post 2554014)
I believe it's the 420 on that motor.

ok so think that would mean i need the gasket for a 6-71 - 8-71 then.

Any guess on the carbs they used?

Bawana 05-10-2008 07:33 PM


Originally Posted by BDiggity (Post 2554037)
ok so think that would mean i need the gasket for a 6-71 - 8-71 then.

Any guess on the carbs they used?

That is not a 420, it's a 250, or could be the smaller 177. Go to the Holley/Weiand web site, go under tech library, they have prints of the blowers.
Bawana

BDiggity 05-10-2008 08:15 PM


Originally Posted by Bawana (Post 2554091)
That is not a 420, it's a 250, or could be the smaller 177. Go to the Holley/Weiand web site, go under tech library, they have prints of the blowers.
Bawana

thanks. downloaded some docs. looks like a 177.

GS42fun 05-10-2008 08:30 PM

You have the B&M 250 blower. Back when B&M sold it they called it the 250 Power Charger, but it's a 250 for sure.

BDiggity 05-10-2008 08:44 PM

1 Attachment(s)

Originally Posted by GS42fun (Post 2554126)
You have the B&M 250 blower. Back when B&M sold it they called it the 250 Power Charger, but it's a 250 for sure.


i thought looking at this, the 250 has 2 carbs. am i reading the chart wrong? this is all new territory for me as u can tell. lol

Griff 05-10-2008 09:01 PM

The top plate can be changed for single or dual carb set up. That is a 250 blower. Not sure if it is original. I thought the 525 hawks had B&M 174 blowers, like the Merc 525SC has a Wieand 177.
Either way its has 250 blower now.

What parts do you need??????

GS42fun 05-10-2008 09:08 PM

What Griff said is true. On the 250's you could change the top plate and run a single four barrel or dual four's.

Griff 05-10-2008 09:20 PM

He was just on MWBP and I gave him the info. He should be set................for now:D

BDiggity 05-10-2008 09:23 PM


Originally Posted by Griff (Post 2554145)
The top plate can be changed for single or dual carb set up. That is a 250 blower. Not sure if it is original. I thought the 525 hawks had B&M 174 blowers, like the Merc 525SC has a Wieand 177.
Either way its has 250 blower now.

What parts do you need??????

im just buying that carb plate gaskets. when i was talking to john he said to check it for leaks. i figured i better buy them now as insurance just in case next they are needed next weekend.

plus im compiling this xls spreadsheet w/ all this maintenance stuff so i dont have to go thru this every time.


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