557 A-460 Heads Dyno Test,Do these numbers seem decent.

12.5:1 Compression Flat Top Piston,Head Flow 465 cfm int.and 330 cfm exh.at.800 lift Cam Lift .806 int and .763 exh 275-284 dur. at .050 lift 110 LSA,Holley 1050 Dominator,Trick Flow Single Plane newer style intake.Dyno Numbers 895 Horsepower at 6,900 rpm and 757 lb-ft of Torque at 5,800 rpm.

Thanks Mark.

Mark Miller wrote:12.5:1 Compression Flat Top Piston,Head Flow 465 cfm int.and 330 cfm exh.at.800 lift Cam Lift .806 int and .763 exh 275-284 dur. at .050 lift 110 LSA,Holley 1050 Dominator,Trick Flow Single Plane newer style intake.Dyno Numbers 895 Horsepower at 6,900 rpm and 757 lb-ft of Torque at 5,800 rpm.

Thanks Mark.

------------------------
did you not buzz it higher, or did it fall off? 465 w/800 lift? something doesnt seem right, carb is too small


-rich

No, they are not decent. In the General Discussion Section, there is a thread about the magazine article on that engine, and I said they were "weak".

Uncle Charlie

what heads were on that?

Charlie,

Thanks i didn't see that somebody else posted about it before i did.

BOSS 429,

They used Trick Flow A-460 Heads.

Later Mark.

thanks, what i ment was which a head. yes seems low, i would not be happy with those numbers

WHY WOULDNT YOU BE HAPPY WITH THAT ? 900 HP WITH 12.5 COMP 557 CUBES AND A SMALL CAM ONE CARB I MEAN THERE ARE A COUPLE GUYS ON HERE WITH 2 CARBS -WAY MORE COMPRESSION,THAT ONLY MADE 100 MORE THAN THAT SO 900 SEEMS PRETTY GOOD MY 572 MADE ALMOST 900 WITH A NOS CAM AND 11.5 COMPRESSION

NOW DONT BEAT ME UP HERE - JUST CURIOUS

come on ...... my motor made 850 with 13.1 and a way,way smaller cam and only flowed 385 @ .800 and that is on a dyno that can break a mule ................... i would say very sad results !!!!

jm .02

Mark Miller wrote:12.5:1 Compression Flat Top Piston,Head Flow 465 cfm int.and 330 cfm exh.at.800 lift Cam Lift .806 int and .763 exh 275-284 dur. at .050 lift 110 LSA,Holley 1050 Dominator,Trick Flow Single Plane newer style intake.Dyno Numbers 895 Horsepower at 6,900 rpm and 757 lb-ft of Torque at 5,800 rpm.

Thanks Mark.

I did'nt read the spec's on the engine but w/the right cam/carb, that engine should br in the 950 range imo.

I'm no expert but the cam looks smallish.

For a mild build it don't look bad........max effort is a different story.

Whats the motor going in?

For reference: click --->Seth's 557 A-head

Much smaller cam, out of the box 2.3 heads, and 11:1 compression made within about 50 or 60 horsies when all was said and done.

badnotch wrote:WHY WOULDNT YOU BE HAPPY WITH THAT ? 900 HP WITH 12.5 COMP 557 CUBES AND A SMALL CAM ONE CARB I MEAN THERE ARE A COUPLE GUYS ON HERE WITH 2 CARBS -WAY MORE COMPRESSION,THAT ONLY MADE 100 MORE THAN THAT SO 900 SEEMS PRETTY GOOD MY 572 MADE ALMOST 900 WITH A NOS CAM AND 11.5 COMPRESSION

NOW DONT BEAT ME UP HERE - JUST CURIOUS

3 514s that make all around 930hp, 2 530s, and a 552,all 1 carb,make more, your 572 sounds better then this 557,

Mark Miller wrote:12.5:1 Compression Flat Top Piston,Head Flow 465 cfm int.and 330 cfm exh.at.800 lift Cam Lift .806 int and .763 exh 275-284 dur. at .050 lift 110 LSA,Holley 1050 Dominator,Trick Flow Single Plane newer style intake.Dyno Numbers 895 Horsepower at 6,900 rpm and 757 lb-ft of Torque at 5,800 rpm.

Thanks Mark.

I would try changing the intake and carb setup if this is a max effort race motor use a tunnel ram

just my .02

3 514s that make all around 930hp, 2 530s, and a 552,all 1 carb,make more, your 572 sounds better then this 557,[/quote]


Are you saying that the 3 514s, the 2 530s, and the 552 that make more, are your engines? With what heads? The TFS A-460's or what? I'm confused.

Thanks,
Charlie

Just for your information ... typing in all caps can get you ignored on here and probably will in the future.

Those numbers are about right for an "out of the box" 528 inch engine with those specs.[/quote]

man im sure glad you told me that sounds like a kids game

I tend to ignore that caps lock comandos myself.

How hard is it to click a key?

Gerry typing in all caps is concidered yelling on the computer, I know you nor I would like to be talking with someone and them be yelling at us!


Have a nice day
Randy

F-OFF COUG!!!!!!!!!!!!!!!!!!

well i was typing away -and when i was done kinda figured it was in caps lock- well i sure in the hell wasnt going to retype it just because you didnt like caps lock

rmcomprandy wrote:major bru-ha-ha

Haven't heard that in a while. made me alsmost spit my rum/coke! lol

Randy,

When you say out of the box i guess you're talking about the heads?I thought for the flow numbers that they said got that it would have made more power than they made.They were going to try a tunnel ram with 2 carbs but ran out of time or something.

Later Mark.

c.evans wrote:3 514s that make all around 930hp, 2 530s, and a 552,all 1 carb,make more, your 572 sounds better then this 557,

Are you saying that the 3 514s, the 2 530s, and the 552 that make more, are your engines? With what heads? The TFS A-460's or what? I'm confused.

Thanks,
Charlie[/quote]

didnt mean to confuse you,

552 has c heads 1 carb 1043< too small of cam
514 blue thunder alum (2) and another w/iron 896 < pick this one up since, other two 928, 935

not mine i just built them for people

and i ment his sounded better for low compression for the power it made per cost,then the other


rich