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454 build FYI
#1
Just thought I would share my build here are the specs. Its nothing special should make ok power and not eat parts.
468, steel crank, eagle H beam rods, JE Teflon skirt pistons, 10.8:1 comp, main stud girdle, Pro systems carb small venturi big throttle plate style 4150 with a real wet flow of 830-850 cfm. ferrera valves, Pac springs, 7.2 roller rockers, true roller timing set, cam is a Solid flat tappet 248@50 595 lift with 294 duration. Ported Brodix race rites and a ported Brodix single plane.

My Arse is telling me its about 550-560hp anyone want to have a guess at the actual HP before it goes on the dyno this week.

Intake during porting
[img][Image: 2j18ugy.jpg][/img]
[img][Image: 5laohx.jpg][/img]

Brodix Race Rite ovals 270cc now 290cc
[img][Image: 5xmxol.jpg][/img]
[img][Image: 2ij26q1.jpg][/img]

didn't all go to plan bit of core shift here and broke through into the stud hole. Bronze sleeve because its a street car other wise could of left it
[img][Image: avbyf.jpg][/img]

finished
[img][Image: 346w26d.jpg][/img]
[img][Image: 2n9mjyh.jpg][/img]
[img][Image: 33o5z07.jpg][/img]

ruff render of flow numbers will post up finished one later.
[img][Image: 359agxu.jpg][/img]

going in this about 3600 pounds with 112kg of me in it
[img][Image: 25hpkjs.jpg][/img]

He has all the vices I admire and none of the virtues I despise
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#2
Nice if you like chebbies...hey I resemble that remark.

635 HP on an engine dyno.

Great number for the heads. I bet it would be happy with a little more cam...a roller with around 260 @ .050 and about to .700 lift (Hey I don't have to feed it or live with it).
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#3
sicndhed;248550 Wrote:Nice if you like chebbies...hey I resemble that remark.

635 HP on an engine dyno.

Great number for the heads. I bet it would be happy with a little more cam...a roller with around 260 @ .050 and about to .700 lift (Hey I don't have to feed it or live with it).
Thought about more cam but this will do for now. There is a 4.5in bore short stroke 509 in my future will probably go for a roller then.

He has all the vices I admire and none of the virtues I despise
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#4
Well that is a lot off power Luke Regards Lars


Sent from my iPad using Tapatalk Regards DK73

So I'm a proud owner of one Mach 1 73! Regards Lars DK73whistling
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#5
Will have lots of torque but I don't think it will make your HP goal with the oval port heads. If it had the LS6 or the aftermarket rectangle port heads then yes lots of HP. The LS5 was a truck engine the LS6 was strictly a racing engine and way under rated on H.P.. Came stock set up for dry sump from factory one of the better chevy engines.
You did upgrade crank and rotating and got some more C.I. so it might do it if you don't run out of fuel.
I was in Atlanta last week thought I had closed a deal on a 1970 Chevelle SS LS6 454 that had been in storage since the 70's all original blue with white stripes. It fell through at last minute I guess someone offered him more. I was going to flip to buy more mustangs, lol. Less cost and easier to work on.
I will be looking for the results it will be a beast for sure.
David


When a man is in the woods and talks and no women are there is he still wrong??
Tongue
David
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#6
I hope you can buy tires at wholesale prices Smile



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#7
Nice build, I have no idea on HP but I am going to say 570HP.

-john
(jbojo)
351C 4V cc heads, 10.5 : 1 CR, 290 Herbert cam, Flat top forged pistons, forged connecting rods, Atomic efi,
C6 with Gear Vendor overdrive, 3.89 Tru Trac, Hooker Super Comp with 2 1/2" Pypes Exhaust.        

Some Mod pictures can be seen at:

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#8
562 HP with standard correction is my guess. Chuck
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#9
Carolina_Mountain_Mustangs;248566 Wrote:Will have lots of torque but I don't think it will make your HP goal with the oval port heads. If it had the LS6 or the aftermarket rectangle port heads then yes lots of HP. The LS5 was a truck engine the LS6 was strictly a racing engine and way under rated on H.P.. Came stock set up for dry sump from factory one of the better chevy engines.
You did upgrade crank and rotating and got some more C.I. so it might do it if you don't run out of fuel.
I was in Atlanta last week thought I had closed a deal on a 1970 Chevelle SS LS6 454 that had been in storage since the 70's all original blue with white stripes. It fell through at last minute I guess someone offered him more. I was going to flip to buy more mustangs, lol. Less cost and easier to work on.
I will be looking for the results it will be a beast for sure.
David
LS6 is no 1 on my dream list. They have probably the coolest factory idle of all the top tier muscle cars lots of overlap sounds tuff.

He has all the vices I admire and none of the virtues I despise
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#10
Here are the finished flow numbers I think they are pretty good for non lifted port ovals,As you can see they have 700+hp potential in fact the same heads with the same port job made near 740hp on a 477ci BBC. Cam shaft is my limiting factor in this build. But as mentioned I will build a 509 on E85 over the next few years then use these heads and manifold on it. That should be good for high 600s and lots of torque.
[img][Image: 2enb3bd.jpg][/img]

He has all the vices I admire and none of the virtues I despise
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