Bench Racing: Highest horsepower N/A 10.3" deck engine combo's

Just studying some cylinder head potential, and got to dreaming. I was wondering what is the highest horsepower anyone has gotten out of a 10.3" deck motor?

What about the highest horsepower with a Hemi layout?

Details please, if you are willing to share.

I'd think in a max effort hemi 1600ish wouldn't be out of line n/a. Of course that involves alot of rpm and $$$$. Something in the 690" range.

Is it possible to get 690 out of a 10.3 block?

4.7" bore and 5" arm will get you there, and it can be fit into a 10.3 Eliminator block I believe.

I know the Thor's will go over 1300 hp properly set up, and that is the top of the line in wedge heads for the BBF.

That sounds pretty sweet.

FORDMUD wrote:That sounds pretty sweet.

Yes it does.......

What about the A460's for a slightly more conventional head? What is the highest horsepower anyone has seen out of these heads, especially with their cast tunnel rams?

I think the king of the hill on the A's goes to Phillip Oakley's 604 @ 1100+hp, unless you get ole Hemi's buddy to build you one that did 1300.

schmitty wrote:I think the king of the hill on the A's goes to Phillip Oakley's 640 @ 1100+hp, unless you get ole Hemi's buddy to build you one that did 1300.

Our A head 557" dyno'd 1110hp. So, obviously 1100 is doable...

Nevs wrote:

schmitty wrote:I think the king of the hill on the A's goes to Phillip Oakley's 604 @ 1100+hp, unless you get ole Hemi's buddy to build you one that did 1300.

Our A head 557" dyno'd 1110hp. So, obviously 1100 is doable...

OOPS not a 640, more like 604 ci.

A 557 at over 1100hp? Very Impressive!


Details please.

what about a c-460 headed motor? My c heads peaked at 515cfm and are going on a 598 a460 block about 13.5:1 comp, Nitrous deal, sheet intake and twin 2000cfm throttle bodies.

I had the same combo, c-heads 13:5 compression, sheetmetal and 2 BRE 1200 cfm carbs and made an honest 1200. Are you using a N20 cam with your injection ?

schmitty wrote:I think the king of the hill on the A's goes to Phillip Oakley's 604 @ 1100+hp, unless you get ole Hemi's buddy to build you one that did 1300.

fox331 wrote:A 557 at over 1100hp? Very Impressive!


Details please.

With out a power adder ? Nevermind the details. Is he taking new customers? Please give me his name and number. My cousin has a 604 a-head collecting dust that needs to be completed.

Yes I am building a n2o deal. Will be using a cam for n2o, with the efi set up. TS were you spraying yours? If so about how much n2o?

Thunderstruck wrote:

schmitty wrote:I think the king of the hill on the A's goes to Phillip Oakley's 604 @ 1100+hp, unless you get ole Hemi's buddy to build you one that did 1300.

fox331 wrote:A 557 at over 1100hp? Very Impressive!


Details please.

With out a power adder ? Nevermind the details. Is he taking new customers? Please give me his name and number. My cousin has a 604 a-head collecting dust that needs to be completed.

N/A. Trick Flow tunnel ram, 2 1050's done by Pro Systems, 118 octane race fuel, WW Engineering shaft rockers, lots of camshaft, A 460 heads)old style) with a lot of work,(475@850 intake, 350@900 exhaust). 4.150" strokeX4.6250" bore. You can pm me if you are truly interested in the engine builder.

I had a horsepower cam in mine. Never had N20 on the motor.That will be a new addition this year along with the N20 cam. I,m going to try 350hp in a single stage.

Yes that should go well TS. My parts should show up monday and this thing can go together

I just got my motor from STEVE SCHMIDT 1520 HP 650 CI

WILLIE OMPS wrote:I just got my motor from STEVE SCHMIDT 1520 HP 650 CI

................OK










WOW

WILLIE OMPS wrote:I just got my motor from STEVE SCHMIDT 1520 HP 650 CI

Care to share some basic details?...

WILLIE OMPS wrote:I just got my motor from STEVE SCHMIDT 1520 HP 650 CI

Willie, do you by chance know Mark Hottle there at Winchester Auto Parts, ( the NAPA store)?

Charlie

1152hp with a N/A 548 with C-heads and 2 1150s. Probably makes more now with a plenum spacer since it went the same ET and .7 mph more in 2000 ft worse of air so maybe 1180 ish???

WILLIE OMPS wrote:I just got my motor from STEVE SCHMIDT 1520 HP 650 CI

welcome aboard Willie

MAX for it to live in a 10.300 is about 4.635 or so arm, a 4.750 will fit but the piston will come out of the bottom of the bore way to far,and you will be changin them often,rod lenght,and pin hight,and the oil ring is another problem

-rich