Re: 572 all aluminum headed to dyno
[Re: fbs63]
#3012429
02/05/22 11:50 AM
02/05/22 11:50 AM
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Joined: Jan 2003
Posts: 10,095 MN
JERICOGTX
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Looking forward to the results.
69 GTX
68 Road Runner
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Re: 572 all aluminum headed to dyno
[Re: CokeBottleKid]
#3012543
02/05/22 06:17 PM
02/05/22 06:17 PM
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Joined: Oct 2005
Posts: 293 Anchorage, Alaska
metallicareload
enthusiast
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enthusiast
Joined: Oct 2005
Posts: 293
Anchorage, Alaska
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Interested in the dry sump setup, any lifter valley scavenging? Any more pictures/details on the oiling system? Awesome engine!
440, 4-Speed, 3.54 1968, when Dinosaurs ruled the Earth
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Re: 572 all aluminum headed to dyno
[Re: fbs63]
#3012599
02/05/22 09:12 PM
02/05/22 09:12 PM
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Joined: Jan 2003
Posts: 11,786 Portage,michigan
B3422W5
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[quote=B3422W5]Who specc’ed the cam? If Best Machine built it I'm betting they came up with the cam grind. [/quote I have had them do a motor and had the cam for it elsewhere... which I why I ask In my case I took Dwaynes recommendation
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam, footbrake street/strip car Best so far, 10.32 1/4 1.41 best 60 foot 6.56 at 104.17
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Re: 572 all aluminum headed to dyno
[Re: AndyF]
#3012712
02/06/22 11:59 AM
02/06/22 11:59 AM
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Joined: Jan 2003
Posts: 14,539 So. Burlington, Vt.
fast68plymouth
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Did the heads get 2.25” intake valves installed?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: 572 all aluminum headed to dyno
[Re: fast68plymouth]
#3012719
02/06/22 12:20 PM
02/06/22 12:20 PM
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Joined: Jan 2003
Posts: 31,203 Oregon
AndyF
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Did the heads get 2.25” intake valves installed? Yes, heads were reworked to match this shortblock. Chambers opened up for the 4.50 bore size, 2.25 valves, etc.
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Re: 572 all aluminum headed to dyno
[Re: EchoSixMike]
#3012869
02/06/22 08:55 PM
02/06/22 08:55 PM
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Joined: Jan 2003
Posts: 31,203 Oregon
AndyF
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It seems like a small head for what otherwise seems a pretty aggressive setup, any reason why? S/F....Ken M It is what the customer wanted to do. It makes sense based on the customer's plan for his car.
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Re: 572 all aluminum headed to dyno
[Re: AndyF]
#3012912
02/06/22 11:15 PM
02/06/22 11:15 PM
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Joined: Jan 2003
Posts: 6,163 Melbourne , Australia
LA360
master
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master
Joined: Jan 2003
Posts: 6,163
Melbourne , Australia
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I've not seen a duration split like that on a Big block, it's pretty common on high HP small blocks though.
Will be interesting to see the results
Alan Jones
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Re: 572 all aluminum headed to dyno
[Re: JERICOGTX]
#3013024
02/07/22 01:30 PM
02/07/22 01:30 PM
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Joined: Jan 2003
Posts: 19,544 Las Vegas
Al_Alguire
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I have run exhaust splits that far many times on a BB. We have run as much as 16 degrees more on the exhaust side. Be screwing a new Predator together here soon and based on past experience it will have at least a 10 degree split(cam is the only thing we have not decided on yet). Expecting to to make 1130-40 with a very bracket friendly single 4 combo for stop racing.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: 572 all aluminum headed to dyno
[Re: 440Jim]
#3013056
02/07/22 02:49 PM
02/07/22 02:49 PM
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Joined: Jan 2003
Posts: 16,936 NC
440Jim
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Correct, Big EZ heads, 325 cc. Compression is 14.5, cam is 280/296 at 050. We'll run it with 2 inch dyno headers. Throttle body is a Holley 2000 cfm with a 4500 bolt pattern. Intake is a Super Victor fully ported by Wilson. T&D rocker arms, Callies crank, Callies rods, Jesel belt drive. Is it too early for me to guess 920 HP? But the small headers may reduce peak HP. Any other guesses? For the record, using those small headers I am subtracting 30hp. 890 HP with the peak below 7,000 rpm.
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Re: 572 all aluminum headed to dyno
[Re: 440Jim]
#3013061
02/07/22 03:00 PM
02/07/22 03:00 PM
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Joined: Jan 2003
Posts: 10,095 MN
JERICOGTX
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Correct, Big EZ heads, 325 cc. Compression is 14.5, cam is 280/296 at 050. We'll run it with 2 inch dyno headers. Throttle body is a Holley 2000 cfm with a 4500 bolt pattern. Intake is a Super Victor fully ported by Wilson. T&D rocker arms, Callies crank, Callies rods, Jesel belt drive. Is it too early for me to guess 920 HP? But the small headers may reduce peak HP. Any other guesses? For the record, using those small headers I am subtracting 30hp. 890 HP with the peak below 7,000 rpm. I'll guess 904hp. Peak around 6700.
69 GTX
68 Road Runner
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Re: 572 all aluminum headed to dyno
[Re: LA360]
#3013086
02/07/22 03:46 PM
02/07/22 03:46 PM
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Joined: Jan 2003
Posts: 10,088 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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I've not seen a duration split like that on a Big block, it's pretty common on high HP small blocks though.
Will be interesting to see the results Indys suggestion to me for a 572-13 head on 550 cubes was 285/305/112 in at 108. Considering those heads come with a 1.88 exhaust valve, i was surprised . They also said max lift of . 825. I will make due with my 284/296/114 with . 868 gross intake lift. Considering lash etc i will be below . 848 net lift intake.
Last edited by gregsdart; 02/07/22 08:08 PM.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 572 all aluminum headed to dyno
[Re: JERICOGTX]
#3013134
02/07/22 06:31 PM
02/07/22 06:31 PM
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Joined: Jan 2003
Posts: 31,203 Oregon
AndyF
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Oregon
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Correct, Big EZ heads, 325 cc. Compression is 14.5, cam is 280/296 at 050. We'll run it with 2 inch dyno headers. Throttle body is a Holley 2000 cfm with a 4500 bolt pattern. Intake is a Super Victor fully ported by Wilson. T&D rocker arms, Callies crank, Callies rods, Jesel belt drive. Is it too early for me to guess 920 HP? But the small headers may reduce peak HP. Any other guesses? For the record, using those small headers I am subtracting 30hp. 890 HP with the peak below 7,000 rpm. I'll guess 904hp. Peak around 6700. PipeMax says 904 hp too.
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Re: 572 all aluminum headed to dyno
[Re: 440Jim]
#3013550
02/08/22 10:36 PM
02/08/22 10:36 PM
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Joined: Jan 2003
Posts: 31,203 Oregon
AndyF
OP
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OP
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Oregon
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Correct, Big EZ heads, 325 cc. Compression is 14.5, cam is 280/296 at 050. We'll run it with 2 inch dyno headers. Throttle body is a Holley 2000 cfm with a 4500 bolt pattern. Intake is a Super Victor fully ported by Wilson. T&D rocker arms, Callies crank, Callies rods, Jesel belt drive. Is it too early for me to guess 920 HP? But the small headers may reduce peak HP. Any other guesses? For the record, using those small headers I am subtracting 30hp. 890 HP with the peak below 7,000 rpm. We made a few pulls today. It made 870 power at 6800 and 760 torque at 5400. Found a few items to work on. Not sure if we'll put it back on the dyno or just make the changes and put it in the car. Depends on what the owner wants to do. No doubt in my mind that it would easily make 900 hp with some minor changes.
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