C460 heads on a 466......

dfree383 March 16th 2017, 5:53 pm

Any thought of what it might do? Hp? Tq?

Dreaming out loud a 14.5:1, .800 ish cam and a Single Dominator.....

And for the faint at heart a 2 bolt D1 block, factory crank and some Scat hbeams..

maverick March 16th 2017, 5:56 pm

Dave, Ain't it a little early in the day to be drinkin' that heavily? Suspect

I'm thinking it's a good way to get a junkyard shortblock to make junk out of some high-buck heads. Laughing

dfree383 March 16th 2017, 6:07 pm

Could be....... but I wouldnt put big $$$ into it.

What kind of Hp per Inch?

maverick March 16th 2017, 6:22 pm

In 2007, at Windy Hollow, I remember Jon Kaase fielding a question from the crowd....He was asked if he'd ever put a set of his IHRA Mountain Motor ProStock heads on an NHRA 500" ProStock engine. He replied that he had.

When asked "What were the results?", Jon said, "That engine was sold to a guy in Denmark...and that's not far enough away." Laughing

Your D1, 460" C head deal made me think of that quote.

QtrWarrior March 16th 2017, 8:13 pm

Put the Mason jar down and back away !!!! Shocked

68formalGT March 16th 2017, 8:30 pm

Lem always says every engine has a head that's appropriate, or something like that.

FalconEh March 16th 2017, 8:57 pm

Maybe three kits of juice too...could be on the road to...dynamic disassembly right before running over the crankshaft. Laughing

With the milled head and the VP the lawn mower ran like a champ for the front yard, the kid next door got paid for the back yard. Shocked

Paul Kane March 16th 2017, 9:07 pm

dfree383 wrote:Any thought of what it might do? Hp? Tq?

Dreaming out loud a 14.5:1, .800 ish cam and a Single Dominator.....

And for the faint at heart a 2 bolt D1 block, factory crank and some Scat hbeams..

With enough rpm, in excess of 900 hp and the OEM 2-bolt block and crankshaft should live to tell about it.

Might require a smallish exhaust valve and/or some notable relieving of the cylinder walls to clear the exh valves.

Mark Miller March 16th 2017, 11:19 pm

dfree383 wrote:Any thought of what it might do? Hp? Tq?

Dreaming out loud a 14.5:1, .800 ish cam and a Single Dominator.....

And for the faint at heart a 2 bolt D1 block, factory crank and some Scat hbeams..

Talk to Keith Szabo he ran a 468 with C-460 Heads with a Truck Crank with 3.78" Stroke and .080 over 429 block Comp Cam .800 lift and 288-294 Duration at .050,but he was using BME Aluminum Rods.Pretty sure it was a Nitrous Cam as he was spraying 400 Hp thru a plate system.In the article it says BB Cars had to weigh 3,200 lbs. and he ran 8.36@166 Mph in a 82 Mustang GT.IIRC i have a Livernois Build in the house somewhere where i think they built a BBF under 500 cubic inches with C-460 Heads i'll see if i can find it.

Mark Miller March 16th 2017, 11:32 pm

Well i didn't have to look far it was a 477 BBF 4.5 Bore i'm assuming A-460 Block and 3.75 Stroke Billet Crank GRP Aluminum Rods 15:1 Compression Cam .863-.863 Lift 289-296 Duration i'm assuming at .050, 827 Horsepower @7,500 rpm and 603 lb.ft. of torque@6,300 rpm N/A.I'm thinking it was a Nitrous Cam as they were talking about power adders in the article.FWIW this was in the Fastest Street Car Magazine in Nov.2002.

Mark Miller March 16th 2017, 11:35 pm

Mark Miller wrote:
dfree383 wrote:Any thought of what it might do? Hp? Tq?

Dreaming out loud a 14.5:1, .800 ish cam and a Single Dominator.....

And for the faint at heart a 2 bolt D1 block, factory crank and some Scat hbeams..

Talk to Keith Szabo he ran a 468 with C-460 Heads with a Truck Crank with 3.78" Stroke and .080 over 429 block Comp Cam .800 lift and 288-294 Duration at .050,but he was using BME Aluminum Rods.Pretty sure it was a Nitrous Cam as he was spraying 400 Hp thru a plate system.In the article it says BB Cars had to weigh 3,200 lbs. and he ran 8.36@166 Mph in a 82 Mustang GT.IIRC i have a Livernois Build in the house somewhere where i think they built a BBF under 500 cubic inches with C-460 Heads i'll see if i can find it.

Dave,FWIW this article above was in the May 2000 Muscle Mustangs & Fast Fords Magazine.

jbozzelle March 18th 2017, 11:29 am

Sounds like a Comp Eliminator combo... Zing it to the moon....

Paul Kane March 18th 2017, 1:15 pm

A couple of builds from the 385 Series Engine Builder's Forum:

Gary Blair wrote:I dug out the dyno sheets for the 477 from May of 1995.

4.440 X 3.85 477 CI
offset ground truck crank 6.800 crower rods
Venolia 12.2 compression
Comp 288/296 822/735 112 LC in at 104
M-6049-C460 heads 2.35/1.80 stainless Manley
M-9424-C460 intake w/1" spacer
1285 CFM Dominator
2 3/8 (no step) X 4 1/2 collector

Average HP 2500-6500 554 Average Torque 2500-6500 621

Peak HP 897 @ 7250 860 Hp @ 6500

Peak Torque 704 ft lbs @ 6250

As you can see the Cam, Carb, and headers are too BIG!
I thought I would post this for anyone who may be contemplating a build with C-460 heads.

And for the sake of perspective, a C460 headed build using a flat tappet cam:

Matt Robison wrote:...here are the dyno results for our C-460 engine when it had an Ultradyne flat tappet cam, 4.4 bore, 4.2 stroke, 11:1 CR, 1X4bbl., almost no head work, wet sump. These numbers came with 110 octane and 36 degrees total advance...Cam specs (same for both intake and exhaust): 0.663" lift with 1.8 rockers, 259 duration @ 0.050, 292 duration @ 0.020, 112 lobe seperation.

RPM HP Tq.
4500 580.9 678
4600 593.4 677.5
4700 610.5 682.2
4800 627 686
4900 640.1 686.1
5000 664.6 698.1
5100 676.9 697.1
5200 688.9 695.8
5300 704.6 698.2
5400 714.5 694.9
5500 727.5 694.7
5600 739.7 693.7
5700 753.2 694
5800 754.2 682.9
5900 758.3 675
6000 762 667
6100 766.1 659.6
6200 770.4 652.6
6300 785.3 654.7
6400 796.2 653.4
6500 797.2 644.1
6600 Peak 802.5 638.6

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C460 heads on a 466......

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