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smallblock stroker, 600 HP out of question? on pump gas #345177 06/12/09 06:26 PM 06/12/09 06:26 PM
Joined: Aug 2006 Posts: 1,349 warfordsburg, PA dirt OP pro stock
dirt OP pro stock Joined: Aug 2006 Posts: 1,349 warfordsburg, PA	I am gathering up parts to possibly build a stroker motor this winter. i have a .030 over 360 block that i messed up a piston in and had to pull the motor out to fix and seems logical to upgrade while i am at it. Its a street car that will only see a small amount of racing probably. i run a manual transmission and plan on keeping it. I normally put between 1000 to 2000 miles a year on it for the last 17 years. right now it has edelbrock RPM heads, M1 single plane intake that i thought i may be able to reuse. what will make a stroker smallblock run good? i know a mustang thats a 347 and its dynoed at 550 HP and he drives it all over the place. so i cant imagine its out of the question with a mopar. whats the big trick? roller cam? port the heads for all they are worth? or is it just cheaper to leave the stock stroke and slap on a paxton?who makes good parts to handle the power. i dont want to rebuild it every year. last motor lasted 17 years. and it was a spark plug that came apart and trashed it.

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: dirt] #345178 06/12/09 06:54 PM 06/12/09 06:54 PM
Joined: Oct 2004 Posts: 8,165 Left Coast B BobR master
BobR master B Joined: Oct 2004 Posts: 8,165 Left Coast	It's pretty tough to get 600 HP out of a small block that will be mostly street driven. My 416 has fully ported Eddy's(285ish on Ryan J's flow bench), 11.7-1 compression and a solid street roller cam to get 500 HP. It has a 6 pak manifold which hurts power but even with a Victor type I can't imagine getting more than 550. I suggest a blower or a nitrous kit.

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: BobR] #345179 06/12/09 07:03 PM 06/12/09 07:03 PM
Joined: May 2004 Posts: 12,418 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,418 Taxes & Virus's R-US, NY	Buddy of mine has a 426 small block with W2's on it and dyno'd right around 600hp with 580 torque and it is pump gas. He said they are a set of Ritter & Weber heads that flow really well. Other than I see the car at cruise nights and I will see it this Sunday at the Mopar show, I don't know much more about it. '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: Dragula] #345180 06/12/09 07:26 PM 06/12/09 07:26 PM
A Anonymous Unregistered
Anonymous Unregistered A	I don't think 600 h.p. is that hard my 416 cranked out 520 h.p. with mildly ported Edelbrocks and just a .533 lift hyd. cam and dual plane intake...

Re: smallblock stroker, 600 HP out of question? on pump gas #345181 06/12/09 07:36 PM 06/12/09 07:36 PM
Joined: Jan 2003 Posts: 945 La Vernia, Texas Pat7272 super stock
Pat7272 super stock Joined: Jan 2003 Posts: 945 La Vernia, Texas	I think 600 on pump is certainly possible, but not with Eddy heads and not on a stock block.

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: dirt] #345182 06/12/09 07:50 PM 06/12/09 07:50 PM
Joined: May 2006 Posts: 274 Greenville, SC B bad360rt enthusiast
bad360rt enthusiast B Joined: May 2006 Posts: 274 Greenville, SC	My 425 made 565hp on 92 octane on a "stingy" dyno, so maybe around 600 on a different dyno? W5 heads on an R3 block tho. It will be street driven and raced on pump gas. Wouldn't be hard to make 600hp with Edelbrocks and some boost. My old 360 made 592rwhp on 18lbs of boost, pump gas with an a/w intercooler and meth injection, mildly ported R/T heads and a small cam.

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: dirt] #345183 06/12/09 08:01 PM 06/12/09 08:01 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	You can make 600 hp but I dont think your heads will do it, a set of W-2's or W-5's and a good bit of duration plus your going to have to spin it... so a good balance is a must. I made 620 on my 395 ci W-2 but turned it to 8200... that was a 10.5 compression but I ran 100 octane. I think your going to need a head that flows about 310 cfm........ JMO

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: bad360rt] #345184 06/12/09 08:16 PM 06/12/09 08:16 PM
Joined: Jan 2007 Posts: 3,695 nc E emarine01 master
emarine01 master E Joined: Jan 2007 Posts: 3,695 nc	600 hp , if E85 is pump gas where you live than yes , it wont be that hard for a small stroker , I think 17 years out of a 600hp street stroker may be another issue , To make 600 you will have to turn it some with compression , You will need to find someone who realy knows rings and cyl wall finishing , you will need a good head guy also, good luck this sounds like fun

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: emarine01] #345185 06/12/09 09:19 PM 06/12/09 09:19 PM
Joined: Jan 2009 Posts: 273 Edmonton alberta Canada M mr. 63plymouth enthusiast
mr. 63plymouth enthusiast M Joined: Jan 2009 Posts: 273 Edmonton alberta Canada	600hp out of a small block is pretty easy to make. My 461 small block makes 741hp and 638torque with indy heads, single 750 carb, pump gas and naturally aspirated.Car runs great in plus 30 degree(canada) weather and runs high 9zz at the track, best et 9.75@139.88mph on a 10" tire. Full interior and totally street legal from horn to lights to wipers to full exhaust!! 5289266-HPIM34773.jpg (648 downloads) Last edited by mr. 63plymouth; 06/12/09 09:25 PM.

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: Pat7272] #345186 06/12/09 09:32 PM 06/12/09 09:32 PM
Joined: Jan 2003 Posts: 3,078 Edmonton, Alberta, Canada Dartman75 master
Dartman75 master Joined: Jan 2003 Posts: 3,078 Edmonton, Alberta, Canada	Quote: I think 600 on pump is certainly possible, but not with Eddy heads and not on a stock block. I'll beg to differ with that and I go on a chassis dyno for tuning in 2-5 weeks. My heads flow right around 300CFP by 0.500 lift. Mine are indy eddies, but similar numbers are coming out of Ryan Johnson's hands on a frequent basis. With my COMP XR286R cam in there, it should spec right around that 600 mark. I think car craft did a very similar buildup with a slightly larger Crane 260X0.050 CAM and made an honest 610 HP on lower flowing W2's. Greg

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: mr. 63plymouth] #345187 06/12/09 09:34 PM 06/12/09 09:34 PM
Joined: Jan 2003 Posts: 3,078 Edmonton, Alberta, Canada Dartman75 master
Dartman75 master Joined: Jan 2003 Posts: 3,078 Edmonton, Alberta, Canada	Quote: 600hp out of a small block is pretty easy to make. My 461 small block makes 741hp and 638torque with indy heads, single 750 carb, pump gas and naturally aspirated.Car runs great in plus 30 degree(canada) weather and runs high 9zz at the track, best et [Email]9.75@139.88mph[/Email] on a 10" tire. Full interior and totally street legal from horn to lights to wipers to full exhaust!! Wow. Never seen you on the boards until now. I hope to see that car at the track here in and around July! Greg

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: Dartman75] #345188 06/12/09 09:50 PM 06/12/09 09:50 PM
Joined: Feb 2005 Posts: 350 Grande Prairie, Alberta, Can. CW25 enthusiast
CW25 enthusiast Joined: Feb 2005 Posts: 350 Grande Prairie, Alberta, Can.	You would be far better off running boost to get there at least from a reliability and drivability point of view. 600hp under 6000 RPM with boost isn't hard at all. No need for a 260* cam, 225* is more like itwith boost. turbododge ran low low 11s with a very basic drivable combo. 11.67@118 1.88 60' with only 7-8 lbs of boost. Turbocharged, megasquirted, 407 BB, 440 source heads, roller cam, 9:1 comp. http://s292.photobucket.com/albums/mm14/beansgracie

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: dirt] #345189 06/12/09 09:57 PM 06/12/09 09:57 PM
A Anonymous Unregistered
Anonymous Unregistered A	"quote"i know a mustang thats a 347 and its dynoed at 550 HP and he drives it all over the place. so i cant imagine its out of the question with a mopar. is that 347" ford n/a? if a ford can do it,a mopar can do it better

Re: smallblock stroker, 600 HP out of question? on pump gas #345190 06/13/09 12:06 AM 06/13/09 12:06 AM
Joined: Aug 2006 Posts: 1,349 warfordsburg, PA dirt OP pro stock
dirt OP pro stock Joined: Aug 2006 Posts: 1,349 warfordsburg, PA	yes that mustang is NA. no nos or boost .i just went to help him get it home tonight after he tore out the transmission again. a couple years ago i had to fix the frame on it after he hit a deer at 140 mph. and it was messy! its a 302 stroked to a 347, roller cam and some good aluminum heads. it was fuel injected but he went to a carb a couple years ago. so i gotta believe a 408 mopar could do that !

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: dirt] #345191 06/13/09 12:30 AM 06/13/09 12:30 AM
Joined: Feb 2004 Posts: 4,501 Gainesville,FL G goldmember master
goldmember master G Joined: Feb 2004 Posts: 4,501 Gainesville,FL	Build as big as you can afford and skip the Edelbrock heads. Indy has heads that will get you where you want to go,but purchase them through an Indy dealer.

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: Dartman75] #345192 06/13/09 12:31 AM 06/13/09 12:31 AM
Joined: Feb 2004 Posts: 4,501 Gainesville,FL G goldmember master
goldmember master G Joined: Feb 2004 Posts: 4,501 Gainesville,FL	Be sure and let us know when you get back from the dyno and more importantly the track.

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: Pat7272] #345193 06/13/09 01:05 AM 06/13/09 01:05 AM
Joined: Apr 2005 Posts: 673 Emmett, Idaho S SuperStockWagon mopar
SuperStockWagon mopar S Joined: Apr 2005 Posts: 673 Emmett, Idaho	Quote: I think 600 on pump is certainly possible, but not with Eddy heads and not on a stock block. Hmmm..don't tell the competitive NHRA superstock 360's that! Stock stroke,9.1 comp,worked 308 iron heads,alot of cam and various other tricks..oh,did I mention a good bank account= 10.0's in a 3500lb car(you do the math). Streetable?? Pump gas?? Just proves most anything is possible with enough$$$

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: dirt] #345194 06/13/09 01:55 AM 06/13/09 01:55 AM
A Anonymous Unregistered
Anonymous Unregistered A	interesting replies to a somewhat simple question. some say yes, it's doable, some say no, some say they've done it. i'll just add this, since we've done builds like that over and over through the years. don't expect to just throw a bunch of parts at it thinking it's an automatic 600 HP. your choice of parts will have a huge effect on the final outcome. 275-280 cfm will get you there if everything else is chosen carefully. the machine work and assembly need to be done right, obviously, but the tuning to do it reliably on pump gas is critical to having any kind of success for a daily driver. it's certainly not aerospace engineering though. you better start with a real good block or the whole thing may not last long. cracked mains and split cylinder walls are common on stock blocks in that HP range.

Re: smallblock stroker, 600 HP out of question? on pump gas #345195 06/13/09 02:52 AM 06/13/09 02:52 AM
Joined: Dec 2006 Posts: 214 Colo Springs, CO DconD100 enthusiast
DconD100 enthusiast Joined: Dec 2006 Posts: 214 Colo Springs, CO	Well, it's already been mentioned, but with E85 and Edelbrock heads 600 is not out of the question. The 408 in my truck made 578 hp with a Hughes solid flat tappet at 6200rpm. The compression is about 12.7 to 1 with the Keith Black forged flattops. With a 4000 stall and 3.91 gears I drive it to the track and run 11.50's at 4900 feet elevation. Very driveable, and with the added compression I'm getting right at 15 mpg as well! Pump Gas Small Blocks Rock! 11.53 @ 116mph E85 408 at 8500 ft da, 3605 pound truck, 3.91s, street driven

Re: smallblock stroker, 600 HP out of question? on pump gas [Re: DconD100] #345196 06/13/09 04:03 AM 06/13/09 04:03 AM
Joined: Jul 2008 Posts: 30,490 Florida STAYcation dOc … The village idiot's idiot
dOc … The village idiot's idiot Joined: Jul 2008 Posts: 30,490 Florida STAYcation	Quote: Well, it's already been mentioned, but with E85 and Edelbrock heads 600 is not out of the question. The 408 in my truck made 578 hp with a Hughes solid flat tappet at 6200rpm. The compression is about 12.7 to 1 with the Keith Black forged flattops. With a 4000 stall and 3.91 gears I drive it to the track and run 11.50's at 4900 feet elevation. Very driveable, and with the added compression I'm getting right at 15 mpg as well! 15mpg, running 11.50's at an altitude, in-a-truck - with E85 ? ... GIVE me that grocery-list on that motor ... I need one of those for my 5th Ave ! ..

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