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-   -   BBC 174 supercharger (https://www.offshoreonly.com/forums/swap-shop/318599-bbc-174-supercharger.html)

bigbird241 09-30-2014 08:17 PM

BBC 174 supercharger
 
Comes with intake, charger, thermostat relocater, belt, pulleys. Everything is there to bolt on and go. I bought for my boat but going a different direction.

$1600 plus shipping

bigbird241 10-02-2014 06:02 AM

Also comes with Nickerson dominator carb

dsmawd350 10-08-2014 12:16 PM

Have a number? Guy at work looking for one

georgie1 10-10-2014 09:53 AM

Hey big bird is it for oval or square port? Thank you

bigbird241 10-10-2014 11:21 AM

Square

georgie1 10-10-2014 11:28 AM

Do you know if that's big enough for a 502 with grumpy jenkins 345 cc intake runners? Does anyone here know? If it will work I'll take it. I see 177 's also for bbc

Baja226sport 10-10-2014 12:00 PM


Originally Posted by georgie1 (Post 4200833)
Do you know if that's big enough for a 502 with grumpy jenkins 345 cc intake runners? Does anyone here know? If it will work I'll take it. I see 177 's also for bbc

We put a 174 blower on a 516 last year and a 509 this year. With the pulley that came with them the blower would only make 1/2 lb of boost. With the smallest pulley we could get it will make 3-3/12 lbs.

That's with gm 088 heads.

georgie1 10-10-2014 12:07 PM

Ok so probably not enough boost then. Thank you

Baja226sport 10-10-2014 02:12 PM


Originally Posted by georgie1 (Post 4200851)
Ok so probably not enough boost then. Thank you

From what I was told by the guy at the engine shop[ when the one engine was on the dyno the heads do not determine the boost. It is the engine's displacement vs. the blower's displacement and rpm.

MILD THUNDER 10-10-2014 09:50 PM

I personally feel blower size is relevant to cubic inch, but also HP level. A 454 with peanut port heads, stock manifolds and a rv cam wont require the same blower as one with fully ported cnc heads, 700 lift cams, and headers. A poor flowing 454 engine will see higher boost than a good flowing 454 at xxx drive ratio.


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