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Old 05-10-2008 | 04:06 PM
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Default Engine parts help

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.
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Old 05-10-2008 | 04:08 PM
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I believe it's the 420 on that motor.
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Old 05-10-2008 | 05:13 PM
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Originally Posted by Chris Sunkin
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?
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Old 05-10-2008 | 07:33 PM
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Originally Posted by BDiggity
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.
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Old 05-10-2008 | 08:15 PM
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Originally Posted by Bawana
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.
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Old 05-10-2008 | 08:30 PM
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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.
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Old 05-10-2008 | 08:44 PM
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Originally Posted by GS42fun
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
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Old 05-10-2008 | 09:01 PM
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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??????
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Old 05-10-2008 | 09:08 PM
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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.
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Old 05-10-2008 | 09:20 PM
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He was just on MWBP and I gave him the info. He should be set................for now
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