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700 hp default combo? #31438
10/10/06 01:17 PM
10/10/06 01:17 PM
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AndyF Offline OP
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I see that we don't have a 700 hp baseline in the archives so I figured I'd take a stab at it. I'm sure it can be done many different ways but this seems to be a fairly cost effective method:

RB block 4.350 bore
4.250 crank with 2.200 pins
6.800 Chevy rods
12.5 CR. (Diamond flat top shelf piston at zero deck)
Indy EZ heads with CNC porting by Modern Cylinder Head
Indy 440-3 intake or 440-2 with 4500 adapter
1050 Dominator carb
Flat tappet cam about the size of a MP .620
2 inch headers

Torque peak should be around 5200 rpm with power peak around 6200 rpm.

Last edited by AndyF; 10/10/06 01:33 PM.
Re: 700 hp default combo? [Re: AndyF] #31439
10/10/06 01:39 PM
10/10/06 01:39 PM
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La Vernia, Texas
Pat7272 Offline
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cam specs?

Re: 700 hp default combo? [Re: Pat7272] #31440
10/10/06 02:13 PM
10/10/06 02:13 PM
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Quote:

cam specs?




Quote:

Flat tappet cam about the size of a MP .620







Re: 700 hp default combo? [Re: AndyF] #31441
10/10/06 02:27 PM
10/10/06 02:27 PM
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Val-haul-ass... eventually
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BradH Offline
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So, what were the actual #s you came up with using the above combination? If you posted them elsewhere, I never saw 'em.

Also, I'm "thinking out loud" when I wonder how close to 700 HP someone could get w/ a pump-gas friendly combination in the same general displacement (500" +/-) that still uses a solid flat-tappet cam. Oh, and bolting up a "real" exhaust system (3" w/ straight-through mufflers) shouldn't choke it to death, either...

Last edited by Brad Hawk; 10/10/06 05:24 PM.
Re: 700 hp default combo? [Re: BradH] #31442
10/10/06 02:36 PM
10/10/06 02:36 PM
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440Jim Offline
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For a pump gas, muffler acceptable combo, I would stay away from the MP 620 cam. It likes lots of CR and its tight LSA (106) isn't muffler friendly.

And IMO, a 500+ CID engine, especially with moderate heads, needs some LSA to go along with the desired duration. Maybe 109-112 LSA and 260-280º at 0.050"


1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1
Re: 700 hp default combo? [Re: 440Jim] #31443
10/10/06 03:03 PM
10/10/06 03:03 PM
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AndyF Offline OP
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The cam in my 505 was 270/275 ground on a 109 center.

I just used the MP .620 as a "place holder" for the default motor. I think it would work okay for a race motor and it is certainly inexpensive, but wouldn't necessarily be ideal.

Brad, we were making around 725 hp with the Dominator carb and the 440-3 intake. There is a bunch more power to be found in the combo but we ran out of time. (or to be more precise, I ran out of money! $500 a day on the dyno starts to add up after a while)

I don't think it would be any problem to get 700 hp from a pump gas version of this motor on a dyno. But, if you combine pump gas + real world driving + full exhaust it starts to get tough. The cam choice becomes very critical.

Last edited by AndyF; 10/10/06 03:07 PM.
Re: 700 hp default combo? [Re: AndyF] #31444
10/10/06 03:05 PM
10/10/06 03:05 PM
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SE Nunya
Bubba Offline
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how 'bout some cnc ported -1's

Re: 700 hp default combo? [Re: Bubba] #31445
10/10/06 03:10 PM
10/10/06 03:10 PM
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AndyF Offline OP
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The 440-1 heads are more money and they don't seem to be necessary for 700 hp. If the EZ heads will get it done with standard rocker arms, standard port location and internal oiling then why not go that way?

Re: 700 hp default combo? [Re: AndyF] #31446
10/10/06 03:25 PM
10/10/06 03:25 PM
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Mansfield, Tx
Jacob Pitt Offline
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I'm right at that number now with standard stroke rb and a .055 overbore.


2013 NHRA D4 Stock Champ
#4 in the World IHRA Stock
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14x Track Champ
All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837
Re: 700 hp default combo? [Re: AndyF] #31447
10/10/06 03:27 PM
10/10/06 03:27 PM
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Staten Island N.Y.
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Dwayne has a real nice combo making 712hp I recall with a roller cam race gas a set of SR`s and only 451 cubes

Last edited by Dap; 10/10/06 03:35 PM.

PRH446
10.084 @ 135.21 mph N/A through chambered mufflers,3300lbs. Stock stroke wedge
Re: 700 hp default combo? [Re: Dap] #31448
10/10/06 04:03 PM
10/10/06 04:03 PM
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Lehigh Acres, Florida
rickstershemi Offline
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How about the new Victor's, they are certainly inexpensive..??? Haven't heard much said on them though...???

Rickster

Re: 700 hp default combo? [Re: Jacob Pitt] #31449
10/10/06 04:17 PM
10/10/06 04:17 PM
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S.E. Michigan
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Quote:

I'm right at that number now with standard stroke rb and a .055 overbore.




What is the rest of the combination like, if you don't mind me askin'?

Re: 700 hp default combo? [Re: Jacob Pitt] #31450
10/10/06 04:26 PM
10/10/06 04:26 PM
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Portage,michigan
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Quote:

I'm right at that number now with standard stroke rb and a .055 overbore.





ummm...not to pick a fight...but running 9.90's at 133 at 3400 pounds is far from 700 ponies...our smallblock runs those numbers or a hair quicker at pretty much the same weight...no where near 700 ponies


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: 700 hp default combo? [Re: ZIPPY] #31451
10/10/06 04:28 PM
10/10/06 04:28 PM
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Mansfield, Tx
Jacob Pitt Offline
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Indy Ez-1 heads cnc ported by MCH. Straightline roller cam about .640 lift. BME rods, Venolia domed pistons with about 13 to 1 compression. Indy single plain intake, Quickfuel 950, TTI 2" headers. Crankshaft specialist standard crank lightened.


2013 NHRA D4 Stock Champ
#4 in the World IHRA Stock
2x IHRA Div.4 Stock Champ
14x Track Champ
All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837
Re: 700 hp default combo? [Re: B3422W5] #31452
10/10/06 04:32 PM
10/10/06 04:32 PM
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Quote:

Quote:

I'm right at that number now with standard stroke rb and a .055 overbore.





ummm...not to pick a fight...but running 9.90's at 133 at 3400 pounds is far from 700 ponies...our smallblock runs those numbers or a hair quicker at pretty much the same weight...no where near 700 ponies





340Ricks engine make 670hp pretty close

Re: 700 hp default combo? [Re: Dartman928] #31453
10/10/06 04:35 PM
10/10/06 04:35 PM
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Portage,michigan
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Quote:

Quote:

Quote:

I'm right at that number now with standard stroke rb and a .055 overbore.





ummm...not to pick a fight...but running 9.90's at 133 at 3400 pounds is far from 700 ponies...our smallblock runs those numbers or a hair quicker at pretty much the same weight...no where near 700 ponies





340Ricks engine make 670hp pretty close





the duster is heavier and faster and probably makes 630.....it must be in the tuneup....lol


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: 700 hp default combo? [Re: Dap] #31454
10/10/06 04:38 PM
10/10/06 04:38 PM
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Oregon
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AndyF Offline OP
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I remember Dwayne's combo but the roller cam pushes the budget up almost a grand. The SR's might be a good trade for the EZ heads depending on your header situation.

My thinking is that since the 4.250/2.200 crank, 6.800 rod and the Diamond piston are all shelf stock items, this is a pretty easy combo to build. I don't think it costs anymore to build one of these 505 shortblocks than it would to build a 451 with a new crank.

Re: 700 hp default combo? [Re: rickstershemi] #31455
10/10/06 04:44 PM
10/10/06 04:44 PM
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AndyF Offline OP
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Nobody that I'm aware of has put the Eddy Victor heads on the dyno yet. If the Eddy engineers did a good job and the marketing guys price it correctly then it should be a good fit for this type of motor.

Re: 700 hp default combo? [Re: Bubba] #31456
10/10/06 05:11 PM
10/10/06 05:11 PM
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Regina, SK, Canada
charger Offline
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my 505 made 692HP at 6300 RPM on pump gas, 10.5:1 and a ported dual plane Indy Intake w/ a 4150. Heads were mildly ported 440-1's and I'm using a custom roller cam that's fairly tame. Peak TQ came in at 5300 RPM. This motor is for the street.

With a single plane and a dominator I think it should make QUITE a bit more....I think the AndyF motor is a less expensive way to reach the same result...

Re: 700 hp default combo? [Re: AndyF] #31457
10/10/06 05:13 PM
10/10/06 05:13 PM
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Lehigh Acres, Florida
rickstershemi Offline
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I have found a few new victors on fleabay for $1,399.00 a set with springs....?????

Rickster

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