Re: 528 head selection?
[Re: 68roadrunner]
#552258
12/13/09 08:39 PM
12/13/09 08:39 PM
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Joined: Jan 2003
Posts: 10,010 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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I Live Here
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Frostbitefalls MN (Rocky&Bullw...
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Quote:
greg, thanks for the ideas, i am running 440-1 that was cnc ported by indy, they are 325cc intake port. so there is more to go if i need it, and posssibly could with a big bore.
Too bad I haven't had a chance to try out my 2.300 intake valve 440-1 heads yet. It would be great if I could say you will pick up XX hp from the mod. Sounds like your estimate of your current hp is a bit low, as you already have the heads I thought would make a good upgrade. It will be tough to get a 70 to 100 hp gain out of the same heads, unless your present motor is low on power for some reason. Have you had a chance to compare power output with other guys running the same heads? Would you mind posting a full rundown on what you have run for a motor?
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 528 head selection?
[Re: sc301v]
#552265
12/14/09 11:42 AM
12/14/09 11:42 AM
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Joined: Jan 2003
Posts: 10,010 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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I Live Here
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Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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Stuff I wished I had done different- Invest in very stout pushrods, I did later anyway! Buy rockers with at least a 1.7 intake ratio, higher if the cam profiles I want to use will allow. Contact someone that knows valvetrain inside and out, to make sure I have a dead reliable set up. Buy the titanium intake valves, as the money spent will save money in the long run. Set up my motor for pushrod oiling first time around, again I did it later! Spend money on a great crank, center counter weighted, as that is what I did later. Lee, hope this helps your choices, maybe save you some $$ down the road.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 528 head selection?
[Re: gregsdart]
#552266
12/14/09 01:21 PM
12/14/09 01:21 PM
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Joined: Sep 2003
Posts: 2,008 Sweet Home Alabama
MRMOPAR622
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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What is the best cam to use with these 528 cu in engines in a dragster? Maybe we could all benefit with the right camshaft selection. I have the engine out of mine & could change the camshaft. Mine is the 4.50 bore 6.570 BME rods 4.15 crank with CNC 572-13 heads. My cam is a Cam Motion Roller R2826-2862-11 with the Jesel 1.7 X 1.7 rockers the specs are .799/752 .283/292 . It seems to work great,but now would be the time for a better one. The same cam might work for all of us as our combinations are fairly close.Thanks
"To Be The Man'You Have Got To Beat The Man"
"T/D and Pro-Bracket Racer"
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Re: 528 head selection?
[Re: MRMOPAR622]
#552267
12/14/09 03:14 PM
12/14/09 03:14 PM
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Joined: Jan 2003
Posts: 10,010 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
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Frostbitefalls MN (Rocky&Bullw...
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I have a very similar cam to yours with a bit more exhaust duration, and the previous cam was very close to what you run with less exhaust duration. I didn't see a lot of difference.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 528 head selection?
[Re: MRMOPAR622]
#552268
12/14/09 07:03 PM
12/14/09 07:03 PM
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Joined: Jun 2009
Posts: 877 ky
68roadrunner
OP
super stock
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OP
super stock
Joined: Jun 2009
Posts: 877
ky
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Quote:
What is the best cam to use with these 528 cu in engines in a dragster? Maybe we could all benefit with the right camshaft selection. I have the engine out of mine & could change the camshaft. Mine is the 4.50 bore 6.570 BME rods 4.15 crank with CNC 572-13 heads. My cam is a Cam Motion Roller R2826-2862-11 with the Jesel 1.7 X 1.7 rockers the specs are .799/752 .283/292 . It seems to work great,but now would be the time for a better one. The same cam might work for all of us as our combinations are fairly close.Thanks
i wish i knew more about what cam i needed. after i put this one in, i had to change air bleeds in my carb to get it to take the fuel from a dead idle. my carb guy said it probably had more reversion i have the engine apart now and might change it.
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Re: 528 head selection?
[Re: 68roadrunner]
#552269
12/14/09 07:19 PM
12/14/09 07:19 PM
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Joined: Sep 2003
Posts: 2,008 Sweet Home Alabama
MRMOPAR622
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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I am real happy with my cam now,but could put another one in it if need be. I had a new CO2 shift noid that was nothing but trouble,so I know it will rev up over 7600-7800 RPM before you can get out of the gas. But this is my 1st if you call 528 cu in big engine. I have been racing Big Block Mopars since a teenager in 1977 my best engine before this was a .060 440= 451 cu in with a Comp Cams Roller 286/750 with Zeeker heads. So it may all in the engine instead of the cam shaft. But I do know how they feel when they reach thier peek.With the Zeeker engine anything over 6400 RPM & it quite pulling. Maybe someone can put us on a good camshaft.
"To Be The Man'You Have Got To Beat The Man"
"T/D and Pro-Bracket Racer"
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