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Old 01-27-2007, 05:22 PM
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454 cam?,and estimated hp

Hey I bought a new cam today its a comp 11-219-4 solid flat tappet cam.The block has been line honed,decked,bored to 30,I am using dimple rods stock length.Hi-performance crank,and dome pistons with a .230 inch dome speed pro huperutectic with coated skirts.The heads are merlin iron heads with 320cc rectangular ports 119cc chambers 2.300/1.880 valves,gasket port the heads and victor intakes. Fully roller 1.7 ratio rocker arms.I think i'm going to use a 750 or 850 speed demon,could someone give me a hp figure on what this will make and any recommendations? It would be greatly appreciated thanks for looking.
Cam specs
Gross Valve lift intake exhaust

.0595 0.595
Duration@ 0.015 tappet lift 294 294

Valve timing @0.015 intake open 41 closed 73
ehaust open 81 closed 33

Intake exhaust
duration@0.05 248 248
lobe lift 0.35 0.35
110 lobe seperation

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Old 01-27-2007, 07:29 PM
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454 it's hard to say because my dyno'd 427 made over 600horses figure around that range,because I used the same heads,and a similiar cam with 106LSA
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Old 01-27-2007, 08:32 PM
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Quote:
Originally Posted by bonzipenguins
454 it's hard to say because my dyno'd 427 made over 600horses figure around that range,because I used the same heads,and a similiar cam with 106LSA
I'm hoping for 450 500 hp,but closer to 600 would be nice thanks for the reply,do you have to adjust your rocker arms often?
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Old 01-27-2007, 09:47 PM
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yes about every 2 weeks for me.im running 1.7 pro magnum roller rockers.It's in a 1970 Nova.I put valve cover studs and the neoprene reusable gaskets on.Run's very hard.It's probably a lot less on the wheel.But mines pulled it at 584@6200(pulled to 7000 no problem),618ft/lbs@4800.Had to run a vacuum canister for the p/b but other than that.It's sounds great and hauls a**.I like the 427 more than the 454 but there all good.you're's should be plenty for steet/strip.
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