Bulletproof BBC Combo....SC or NA.....
08-20-2002, 09:18 PM
#21
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82's front and rear... Do you have power valves front and rear??
Originally posted by DanB
Allan
Kaama pretty much sumed it up
622 lbs tq@3400, 529lbs @ 5600
563 hp @ 5600
The only thing different in my combo is the Crane 741 cam, (straight up) merlin 310 VR heads that Valako cleaned up (cc chambers, 3 angle valve job) Crane rockers, 950cfm Holley HP4150 w/82 jets front and rear, 1" carb spacer, K&N 7" tall filter
One other thing was I had the block squared and decked about 10thou (I think) to increase quench. Run a .038 head gasket.
JE 9.8-1 Pistons W/C&A rings. 34* timing all in @3400rpm
Our #'s are pretty close, so I dont think your far off, might just be the cam?
Dan
Allan
Kaama pretty much sumed it up
622 lbs tq@3400, 529lbs @ 5600
563 hp @ 5600
The only thing different in my combo is the Crane 741 cam, (straight up) merlin 310 VR heads that Valako cleaned up (cc chambers, 3 angle valve job) Crane rockers, 950cfm Holley HP4150 w/82 jets front and rear, 1" carb spacer, K&N 7" tall filter
One other thing was I had the block squared and decked about 10thou (I think) to increase quench. Run a .038 head gasket.
JE 9.8-1 Pistons W/C&A rings. 34* timing all in @3400rpm
Our #'s are pretty close, so I dont think your far off, might just be the cam?
Dan
08-23-2002, 06:43 PM
#22
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KAAMA DanB, thanks for the info.
Dan, did you run any dyno sweeps with and without the K&N and are the numbers above with or without it? I have one I currently run, but did not run andy dyno sweeps with it adn I am wondering how much it helps/hurts/etc. You are about 45-50 numbers bigger on both hp and tq, so doubt it is just cam, probably the heads, which is allowing the bigger carb and so on. Mine did not like anything bigger than the 850 (4150 as well). Ran best at 32* as well. MSD 6AL here. Hmmmm............Damn! Anyway, food for thought, thanks guys for the input.
If I wasn't so hell bent on dyno time before I install the motor, I would think about upgrades this winter, cam and head work. We'll see........you know what that means....
Mike, I think you win the award for best highlight ability in your posts HAHAHAHAHAAAA!!!!!!
Dan, did you run any dyno sweeps with and without the K&N and are the numbers above with or without it? I have one I currently run, but did not run andy dyno sweeps with it adn I am wondering how much it helps/hurts/etc. You are about 45-50 numbers bigger on both hp and tq, so doubt it is just cam, probably the heads, which is allowing the bigger carb and so on. Mine did not like anything bigger than the 850 (4150 as well). Ran best at 32* as well. MSD 6AL here. Hmmmm............Damn! Anyway, food for thought, thanks guys for the input.
If I wasn't so hell bent on dyno time before I install the motor, I would think about upgrades this winter, cam and head work. We'll see........you know what that means....
Mike, I think you win the award for best highlight ability in your posts HAHAHAHAHAAAA!!!!!!
08-26-2002, 09:58 PM
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mike-I do not know the answer from the person you are looking from but I have used power valves on every project I have done. Carb jetting is a compromes from off idle to wide open. Power valves just help you get close to the right Air/fuel ratio right on at all throttle settings. This goes for blower or NA. If you only go from idle to full like in a drag boat or car then power valves get in way.
08-29-2002, 07:16 PM
#26
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This winter I am building a mild motor strarting with my current GenV 454. Four bolt mains and oval ports. I am told that these heads with a cleanup and intake/gasket/port match are good to 6,000rpm. My usual mechanic suggests basically building it into a HP500. I am looking for a maintenance free setup. An ocasional rocker adjustment at most. This boats never going to be real fast so I would rather have it be strong and reliable. Its only rated at 275pshp now and could use some life. Im not sure how much power I want to push through my King Cobra/Vovlo SX drive on a heavy single engine combo. Any thoughts appreciated.
08-29-2002, 09:39 PM
#27
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How about a N/A build up using the GMPP 502ci partial.
You get a complete 4 bolt shortblock for $3960.
Add good flowing alum heads with around 9.5:1cr. Dart or Brodix
Single plane intake.
900cfm carb.
MSD dist.
Mild to wild hyd. roller cam...you all ready have the lifters.
Can someone get this combo to pump out 600HP?
You get a complete 4 bolt shortblock for $3960.
Add good flowing alum heads with around 9.5:1cr. Dart or Brodix
Single plane intake.
900cfm carb.
MSD dist.
Mild to wild hyd. roller cam...you all ready have the lifters.
Can someone get this combo to pump out 600HP?
Last edited by Back4More; 08-29-2002 at 09:44 PM.
08-30-2002, 02:23 PM
#29
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Hey Intolerant1
Either do a search or email Waterfoul.
If you mimic his set up, you will be more than happy.
I did my 454s nearly the same as his in 99 and I am.
There's a guy in the area that can get super deals on Federal Mugal engine parts (pistons, cams, bearings).
email me and I'll get you his number.
[email protected]
Either do a search or email Waterfoul.
If you mimic his set up, you will be more than happy.
I did my 454s nearly the same as his in 99 and I am.
There's a guy in the area that can get super deals on Federal Mugal engine parts (pistons, cams, bearings).
email me and I'll get you his number.
[email protected]
