Originally Posted by Mr Maine

Cool, i didnt think a 525sc would fit under the hatch of a 311 but maybe it will

Originally Posted by 79formula

I had a merc 420 that I made into a 525sc. I had the ebay dart hp500 knock off intake. The blower is only about an inch taller. Anyways I did 2399 pistons, stock forged rods and crank. My heads were junk, so I picked up a set of HP500 rectangle port heads, the only difference was 2.25 vs 2.19 intake valves.

Heres the full list in a better order.

Block: Stock MK IV .060 over
Pistons: Speed Pro Forged 2399
Crank: GM Forged
Rods: GM Forged
Cam: Crane 134561 Flat Cam
Heads: HP500 Rectangle port
Valves: Manley Stainless intake with Inconel Exhaust
Springs:Crane 99896-16 springs
Rockers: Comp Ultra Pro MagnumXD
Blower: Weiand 177/ Merc525
Carb: 1050 Dominator
Exhaust: EMI Thunder.

It made 572hp @5600RPM, I dont remember the torque But I want to say over 600. I remember thinking while it was on the dyno that it could break a bravo on demand.
I have over 60 hours on the setup and it has performed perfectly. It starts easy. It idles well. I am really happy. It is thirsty though. I did gain 10mph over a 420.

Originally Posted by mike tkach

i just installed one of these cam,s,plan on firing the engine in the am,does it have a rough sounding idle?

Originally Posted by Baja Rooster

I'm strictly an internet mechanic, but the 240 blowers are the same height and you can turn them slower with less heat into the engines.

Originally Posted by ph1971

So, 79, how is the Bravo holding up? Any extra maintenance?

Originally Posted by mike tkach

i just installed one of these cam,s,plan on firing the engine in the am,does it have a rough sounding idle?