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Another what will it make? (hemi) #1130600 12/09/11 05:43 PM 12/09/11 05:43 PM
Joined: Jan 2010 Posts: 311 Kingsville, Md grncpe OP enthusiast
grncpe OP enthusiast Joined: Jan 2010 Posts: 311 Kingsville, Md	Just thought I would ask as I have been collecting parts & waiting on rods & pistons.Any input is good...cant wait to here! 588 ci. 4.5 in bore mega block 4.625 bryant crank all the tricks.gun drilled,knife edged, chevy rod. eagle rods.arp 2000 bolts.chevy big end .990 pin Ross pistons 12 to 1 compression,lightened pin & piston Mopar alum. heads being ported right now.380 cfm is what I am shooting for.SS valves nothing trick. Racer Brown STX 22, 590 lift.276@.50 Stock Rat Roaster w/ 625 Afb's 2 in. hooker headers. This motor is going into my 70 cuda to run n/ss & hemi shootout events. I wanted something to make good torque as the car is full bodied,& full int.The car should weigh right around 3500 with me in it.Any other info I will add if I left something out.Thanks

Re: Another what will it make? (hemi) [Re: grncpe] #1130601 12/09/11 06:27 PM 12/09/11 06:27 PM
Joined: Jan 2011 Posts: 4,785 Utah and Alaska astjp2 master
astjp2 master Joined: Jan 2011 Posts: 4,785 Utah and Alaska	380cfm at what lift? what will your low lift flows be? Rocker ratio's?

Re: Another what will it make? (hemi) [Re: astjp2] #1130602 12/09/11 07:14 PM 12/09/11 07:14 PM
Joined: Jan 2010 Posts: 311 Kingsville, Md grncpe OP enthusiast
grncpe OP enthusiast Joined: Jan 2010 Posts: 311 Kingsville, Md	380 @ I believe 600 lift.dont know the low lift #'s as they are being done now.It has stock rockers.IIRC they are 1.57 dont remember for sure on them but this will be a low RPM motor.So the stock rockers should be fine.Plan on shifting @6000-6200 come through the traps around 6500.

Re: Another what will it make? (hemi) [Re: grncpe] #1130603 12/10/11 12:42 AM 12/10/11 12:42 AM
Joined: Aug 2003 Posts: 43,232 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,232 Bend,OR USA	Check the ratio on all of your rockers at the retainers You may be really surprised by how far there off Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Another what will it make? (hemi) [Re: grncpe] #1130604 12/10/11 01:32 AM 12/10/11 01:32 AM
Joined: May 2007 Posts: 174 Oklahoma H hemiiroc member
hemiiroc member H Joined: May 2007 Posts: 174 Oklahoma	You need to turn more than 6000-6200 to make use of your power potential.

Re: Another what will it make? (hemi) [Re: hemiiroc] #1130605 12/10/11 05:05 AM 12/10/11 05:05 AM
Joined: Jan 2005 Posts: 3,699 Newport, Mi Evil Spirit master
Evil Spirit master Joined: Jan 2005 Posts: 3,699 Newport, Mi	Quote: You need to turn more than 6000-6200 to make use of your power potential. At 588", 380@600 lift heads, a .600 lift cam, and a stock Rat Roaster w/625's I wouldn't think it would make good power much higher. Free advice and worth every penny... Factory trained Slinky rewinder.........

Re: Another what will it make? (hemi) [Re: Evil Spirit] #1130606 12/12/11 01:40 AM 12/12/11 01:40 AM
Joined: Jan 2010 Posts: 311 Kingsville, Md grncpe OP enthusiast
grncpe OP enthusiast Joined: Jan 2010 Posts: 311 Kingsville, Md	WOW not 1 guess yet? Ok here is what I am trying to make with it.I am hoping for 750hp. & around 700tq. How close does anyone think I will be to that? Thanks!

Re: Another what will it make? (hemi) [Re: grncpe] #1130607 12/12/11 04:47 AM 12/12/11 04:47 AM
Joined: Jan 2011 Posts: 4,785 Utah and Alaska astjp2 master
astjp2 master Joined: Jan 2011 Posts: 4,785 Utah and Alaska	The Rat Roaster is not a good power maker, but I just sent my rockers out because the intakes were 1.49-1.51, and the exhausts were 1.39-1.40. Check your scrub when you get them on. I am only estimating 650-700 on a similar combo. I have 9.5-1 compression, 242@50 roller cam with .620 lift, stageV heads and intake with slightly less flow @.600 . Tim

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