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What would you expect this engine to make? #1579984 02/16/14 09:33 PM 02/16/14 09:33 PM
Joined: Jan 2012 Posts: 1,541 USA H hudsonhornet7x OP pro stock
hudsonhornet7x OP pro stock H Joined: Jan 2012 Posts: 1,541 USA	Trying to help out a friend.. What should this combination produce? Also what about E.T. in a 68 b-body approx. 3400lbs? 383 turned 431 Edelbrock rpm heads fully ported. 10.5 :1 compression Victor intake 950hp carb Cam to be determined- any suggestions? I know this is a difficult question to answer with the info given, but what are some educated guesses figuring that the chassis will be optimized for the strip? Thanks!

Re: What would you expect this engine to make? [Re: hudsonhornet7x] #1579985 02/16/14 09:41 PM 02/16/14 09:41 PM
Joined: Jul 2004 Posts: 4,384 Worst Weather USA 493_DART master
493_DART master Joined: Jul 2004 Posts: 4,384 Worst Weather USA	call Hughes for a cam. hp - 500-550 ? et - 10.90 -11.20 ? just guessing

Re: What would you expect this engine to make? [Re: 493_DART] #1579986 02/16/14 11:31 PM 02/16/14 11:31 PM
Joined: Jan 2012 Posts: 1,541 USA H hudsonhornet7x OP pro stock
hudsonhornet7x OP pro stock H Joined: Jan 2012 Posts: 1,541 USA	Thanks for the guess! I will now commit blasphemy and ask how a thumpr cam would be!

Re: What would you expect this engine to make? [Re: hudsonhornet7x] #1579987 02/17/14 12:47 AM 02/17/14 12:47 AM
Joined: Jul 2004 Posts: 4,384 Worst Weather USA 493_DART master
493_DART master Joined: Jul 2004 Posts: 4,384 Worst Weather USA	I highly recommend calling Hughes for a cam. they are Mopar only and will get you a perfect cam for your combo. I went from a Scott Brown cam to a similar spec Hughes , and the car picked up over a 10th . Love the Hughes stuff

Re: What would you expect this engine to make? [Re: 493_DART] #1579988 02/17/14 12:53 AM 02/17/14 12:53 AM
Joined: Oct 2003 Posts: 3,698 NE Oklahoma V Von master
Von master V Joined: Oct 2003 Posts: 3,698 NE Oklahoma	High 10s (80s-90s) when sorted. Call Porter for a cam... 72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72. Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.

Re: What would you expect this engine to make? [Re: hudsonhornet7x] #1579989 02/17/14 01:10 AM 02/17/14 01:10 AM
Joined: Jan 2003 Posts: 9,999 Frostbitefalls MN (Rocky&Bullw... gregsdart master
gregsdart master Joined: Jan 2003 Posts: 9,999 Frostbitefalls MN (Rocky&Bullw...	Head flow says you could make 600+ hp if they flow 300 and you put a great cam in it and spin it enough. Mid to low tens, if you have enough cam and the rest of the combo is right.EDIT: I was a bit optimistic, thinking you might go roller cam. Last edited by gregsdart; 02/17/14 03:01 AM.

Re: What would you expect this engine to make? [Re: gregsdart] #1579990 02/17/14 01:53 AM 02/17/14 01:53 AM
Joined: Jan 2012 Posts: 1,541 USA H hudsonhornet7x OP pro stock
hudsonhornet7x OP pro stock H Joined: Jan 2012 Posts: 1,541 USA	Thanks everyone for the advice. I am actually surprised that the car would have that much potential with everything sorted. I was expecting 11.50's to be honest. I will help my buddy research cams and will call the aforementioned people. Thumpr cams were mentioned not because of the sound, but the fact that more and more people are finding wide powerbands with them. Any other suggestions? Also, with steel caps when should we be worried with the power output? Or won't this engine make enough to worry?

Re: What would you expect this engine to make? [Re: hudsonhornet7x] #1579991 02/17/14 02:34 PM 02/17/14 02:34 PM
Joined: Nov 2004 Posts: 3,544 Syracuse,NY CompWedgeEngines master
CompWedgeEngines master Joined: Nov 2004 Posts: 3,544 Syracuse,NY	Although there are too many " unknowns" with this combo, it should run well below 11.50. The key will be cam selction, and more importantly chassis efficiency and tuning knowledge. I am doubting its going to make 600 HP in that package on pump gas, but if the chassis, converter and gears are in alignment, it will run better than your expected ET goal. ITs all about the package, not just the engine.Who ported the heads? RIP Monte Smith Your work is a reflection of yourself, autograph it with quality. WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.

Re: What would you expect this engine to make? [Re: gregsdart] #1579992 02/17/14 02:45 PM 02/17/14 02:45 PM
Joined: Jul 2010 Posts: 2,091 Delray beach, Florida P Performance Only top fuel
Performance Only top fuel P Joined: Jul 2010 Posts: 2,091 Delray beach, Florida	Quote: Head flow says you could make 600+ hp if they flow 300 and you put a great cam in it and spin it enough. Mid to low tens, if you have enough cam and the rest of the combo is right.EDIT: I was a bit optimistic, thinking you might go roller cam. I'm curious as to why you think 300 cfm equates to 600 HP, especially on a 10.5-1 compression engine combo??? he would need to make near 1.4 HP per cube. Quite honestly I don't see that happening with that combo regardless of the cam chosen. A typkical combo like the OP's would be more like 1.2 HP per cube, which equates to near 520 HP, give or take. machine shop owner and engine builder

Re: What would you expect this engine to make? [Re: gregsdart] #1579993 02/17/14 02:54 PM 02/17/14 02:54 PM
Joined: Jan 2003 Posts: 9,999 Frostbitefalls MN (Rocky&Bullw... gregsdart master
gregsdart master Joined: Jan 2003 Posts: 9,999 Frostbitefalls MN (Rocky&Bullw...	My estimate of 600 hp came from a friends combo that is a touch different, but low compression. The Fast and Furious, Joe Schmall that races locally in the tri state area runs a 446 cube RB, box stock small port Eddys, flat tops about .040 in the hole, 590 cam ,850 Holley, single plane, and a well sorted chassis combo has run 10.90s in great air at 3900 lbs! Shift point is 6200 rpm. The low deck would have some advantages to offset the 17 cube difference I would think. Basically I believe it is just how much cam you are willing to put in the motor, and spinning it up to maybe 6500. Chamfering the bores for intake valve unshrouding would more than likely help, as that was done on 426 SS motors If I recall correctly. Again, good head porting, and a roller ought to really make some steam. Last edited by gregsdart; 02/17/14 02:57 PM.

Re: What would you expect this engine to make? [Re: hudsonhornet7x] #1579994 02/17/14 04:45 PM 02/17/14 04:45 PM
Joined: Jul 2004 Posts: 19,317 State of confusion T Thumperdart I Live Here
Thumperdart I Live Here T Joined: Jul 2004 Posts: 19,317 State of confusion	Quote: Trying to help out a friend.. What should this combination produce? Also what about E.T. in a 68 b-body approx. 3400lbs? 383 turned 431 Edelbrock rpm heads fully ported. 10.5 :1 compression Victor intake 950hp carb Cam to be determined- any suggestions? I know this is a difficult question to answer with the info given, but what are some educated guesses figuring that the chassis will be optimized for the strip? Thanks! What vert, gear and suspension...............? 72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....

Re: What would you expect this engine to make? [Re: gregsdart] #1579995 02/17/14 05:12 PM 02/17/14 05:12 PM
Joined: Mar 2008 Posts: 883 Affton MO Q qwkmopardan super stock
qwkmopardan super stock Q Joined: Mar 2008 Posts: 883 Affton MO	I agree it should make 600+HP. I built a 440 for a friend with a 1968 Satelite. Ported edelbrock RPMs, STX-21 [272-.560"] Racer Brown flat tappet camshaft, Stock cast crank, victor intake, 1000 cfm gas carb, 10.5 to 1 CR, flat tops .02 in the hole, 727 trans, 9 1/2" converter, Dana 60 with 4.10 gears and, bought used, 28" x 10.5" M/T slicks. 3300lbs with driver. Chassis was well sorted, lol, 1968 stock, way worn out, leaf springs, stock front suspension and no roll bar. 1.46 60ft.--6.54 1/8th mile--10.35 at 129.8 MPH in 85 not so good air. Car now has an 8 point CM cage and MP S/S springs. Maybe some 10 teens in some decent spring air.

Re: What would you expect this engine to make? [Re: qwkmopardan] #1579996 02/17/14 07:40 PM 02/17/14 07:40 PM
Joined: Mar 2006 Posts: 9,836 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,836 MI, usa	Quote: I agree it should make 600+HP. I built a 440 for a friend with a 1968 Satelite. Ported edelbrock RPMs, STX-21 [272-.560"] Racer Brown flat tappet camshaft, Stock cast crank, victor intake, 1000 cfm gas carb, 10.5 to 1 CR, flat tops .02 in the hole, 727 trans, 9 1/2" converter, Dana 60 with 4.10 gears and, bought used, 28" x 10.5" M/T slicks. 3300lbs with driver. Chassis was well sorted, lol, 1968 stock, way worn out, leaf springs, stock front suspension and no roll bar. 1.46 60ft.--6.54 1/8th mile--10.35 at 129.8 MPH in 85 not so good air. Car now has an 8 point CM cage and MP S/S springs. Maybe some 10 teens in some decent spring air. Agreed. I did a somewhat similar combo, but more compression and unported Eddys. Mopar .590 solid,12.5-1, Torker, 850, 1 3/4" headers, 8" converter, 4.56,10x29,S/S spring. This was in a 3700 race weight GTX street car. 10.90@123. Old design cam,intake and unported heads still looks like it made around 565 HP Doug

Re: What would you expect this engine to make? [Re: dvw] #1579997 02/17/14 10:31 PM 02/17/14 10:31 PM
Joined: Jan 2012 Posts: 1,541 USA H hudsonhornet7x OP pro stock
hudsonhornet7x OP pro stock H Joined: Jan 2012 Posts: 1,541 USA	Lots of good input here. Here is what I know about the car: 1968 B- Body 4- Speed- 18 spline, ram clutch 8 pnt. bar, subframe connectors, torque boxes, Core support brace, inner fender to cowl braces Cal Tracks and mono leafs Tires TBD. The aforementioned 431. Anything else he should be looking at getting or changing?

Re: What would you expect this engine to make? [Re: hudsonhornet7x] #1579998 02/17/14 11:11 PM 02/17/14 11:11 PM
Joined: Jan 2003 Posts: 9,999 Frostbitefalls MN (Rocky&Bullw... gregsdart master
gregsdart master Joined: Jan 2003 Posts: 9,999 Frostbitefalls MN (Rocky&Bullw...	My ET guesstimates were based on your location out east, and thinking the car would be a tubbed, automatic race car. The stick won't be near that fast with tire and suspension limitations. The rear shocks should be at least single adjustables. A post about how to set this car up will help a lot. 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

Re: What would you expect this engine to make? [Re: hudsonhornet7x] #1579999 02/17/14 11:26 PM 02/17/14 11:26 PM
Joined: Mar 2008 Posts: 883 Affton MO Q qwkmopardan super stock
qwkmopardan super stock Q Joined: Mar 2008 Posts: 883 Affton MO	Depends a lot now on how good the driver is rowing through the gears. Hopefully it is an early trans with the 2.65 1st gear ratio. Sounds like it would be a real fun car to drive on the street.

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