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Originally Posted by SB
(Post 4349624)
Take a look at Brodix's newer BB-3 Xtra O 332cc CNC head:
http://www.brodix.com/heads/big-bloc...a-o-exhaust-2/ Then click on "Flow Chart." That's got a marine 540+cid all over it ! |
exactly!!
Originally Posted by 33outlawsst
(Post 4349569)
I think they all flow about the same AFR, Dart, Brodix depending on runner and valve size, I think it boils down to preference and budget
Edit: buy them bare and have an experienced builder put them together to match the cam and other valve train components, jmo Edit: there's a few threads about this |
I like my AFR, and price was good, just wish I bought them bare because I still ended up setting them up custom for my application, so it defeats the "bolt on and go" price....
and don't try to save a buck here..... buy bare and have them built.... trust me, don't let "HOW MUCH" hurt ya lol |
Ok if i just stuck with the 502, how much hp and torgue could i gain over the stock hp500 with aluminum heads and cam change and what cam would be good?
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Originally Posted by bigboat28
(Post 4351169)
Ok if i just stuck with the 502, how much hp and torgue could i gain over the stock hp500 with aluminum heads and cam change and what cam would be good?
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Aluminum don't make the heads better really, it's the flow...
A buddy built 502's with 265 edelbrocks ported, 9.5:1 not sure cam at moment but I think 232/[email protected] .640 lift on 114 , dual plane intake and worked 750 carbs, made 621 hp and 640tq |
Dale has 3's in a 28 ft boat it's fine lol
Originally Posted by endeavor1
(Post 4351176)
Enough to make your drives unhappy:riding:
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Originally Posted by bigboat28
(Post 4351169)
Ok if i just stuck with the 502, how much hp and torgue could i gain over the stock hp500 with aluminum heads and cam change and what cam would be good?
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Originally Posted by Full Force
(Post 4351177)
Aluminum don't make the heads better really, it's the flow...
A buddy built 502's with 265 edelbrocks ported, 9.5:1 not sure cam at moment but I think 232/[email protected] .640 lift on 114 , dual plane intake and worked 750 carbs, made 621 hp and 640tq Funny how good those 502's with those "too small" dale cubic built 750 holleys run. ;) The cams are from bob and the engine was only spun to around 6250 on the dyno. Carb was super close right from dale with only a bit more fuel needed in the mid range. |
A dyno pull isnt the end all to a carbs tune.
Btw, is your boat running yet ? Did your engine builder finish that supercat build ? Or are you still sitting in your den dreaming about boating and throwing cheap shots at me? |
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