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Originally Posted by SB
(Post 4233885)
Well, then let me help.
Both sets of these lobes, either when widened or put closer together, will increase pressure. Guaranteed. http://3.bp.blogspot.com/-WgozSmW2jO...nizales++6.jpg |
Originally Posted by Black Baja
(Post 4233895)
Years ago I did a GM headed 496. Just over 10:1 it had a 110lsa with more duration. Baker Outlaw billet carb. Boat went 75+ in a hull that normally goes 70 with an hp500. That thing pulled like crazy when you hit it.
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Originally Posted by Black Baja
(Post 4233902)
Is that your wife or girlfriend the wife doesn't know about?
then again,theres a guy out there that hates her fcking guts. |
Originally Posted by Black Baja
(Post 4233901)
I was always told bad head needs help from the camshaft (tight lsa) good head doesn't.
With a killer head you can shorten the duration, widen the LSA, and make the same or more power than a comparable motor with yukie heads. Yes, i said yuky. There is no better example than the LS motors vs the 23* motors. Exahsut overlap can be called the 5th cycle on a 4 cycle engine. With limited induction and/or limited heads (basically same thing) that 5th cycle can be super important and thus why you'll see 102 or 104LSA cams installed advanced to say 98ICL or even 96 ICL. Remember, dome interfering in the combustion chamber can effect this also....as the dome reaching into the heads combustion chamber for most all of the overlap period. Dome shape is very important for high performance motors and has come a long way in the last dozen years. Obviously combustion chambers too, as they work together. |
Originally Posted by Black Baja
(Post 4233902)
Is that your wife or girlfriend the wife doesn't know about?
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Back to peanut butter for a 454, I always wanted to see how a set of these would work out:
Brodix BBC-1 Raised Oval Ports (ported by HVH / cast by Brodix) Intake runner: 305cc Exhaust Runner: 120cc 2.250 / 1.88 valves Lift // Int flow // Ex flow .200" // 164 // 133 .300" // 245 // 182 .400" // 298 // 215 .500" // 349 // 244 .600" // 377 // 267 .700" // 390 // 280 |
Originally Posted by SB
(Post 4233915)
Back to peanut butter for a 454, I always wanted to see how a set of these would work out:
Brodix BBC-1 Raised Oval Ports (ported by HVH / cast by Brodix) Intake runner: 305cc Exhaust Runner: 120cc 2.250 / 1.88 valves Lift // Int flow // Ex flow .200" // 164 // 133 .300" // 245 // 182 .400" // 298 // 215 .500" // 349 // 244 .600" // 377 // 267 .700" // 390 // 280 |
Originally Posted by SB
(Post 4233915)
Back to peanut butter for a 454, I always wanted to see how a set of these would work out:
Brodix BBC-1 Raised Oval Ports (ported by HVH / cast by Brodix) Intake runner: 305cc Exhaust Runner: 120cc 2.250 / 1.88 valves Lift // Int flow // Ex flow .200" // 164 // 133 .300" // 245 // 182 .400" // 298 // 215 .500" // 349 // 244 .600" // 377 // 267 .700" // 390 // 280 |
Originally Posted by Black Baja
(Post 4233923)
Just had a conversation about these on a 509 went 715hp
======================== Every time I get my spacers in (HVH cnc's them for me) they leave stickers, pens, and various cylinder head info that goes thru their doors.....these raised oval ports always get my attention. No price mentioned so i hate to ask, as most heads from there are huge $$$. |
Originally Posted by SB
(Post 4233935)
Want intake fits on these ?
======================== Every time I get my spacers in (HVH cnc's them for me) they leave stickers, pens, and various cylinder head info that goes thru their doors.....these raised oval ports always get my attention. No price mentioned so i hate to ask, as most heads from there are huge $$$. |
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