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Biggest Of The Three Blocks - Killer 460

By , Photography by Brian Hafliger
Ccrp 1207 Biggest Of The Three Blocks Killer 460 000
Ccrp 1207 Biggest Of The Three Blocks Killer 460 000

Hands On

In spite of our reputation as Chevy-worshipping fanboys, we really do appreciate diversity here at CC. Therefore, we'd be remiss if we didn't include a big Ford build in this Budget Big-Block issue. The build we initially had lined up didn't work with our deadline, but fortunately, Brian Hafliger of IMM Engine and Dyno in Indio, California (and builder of the Dodge 400 in this issue), had a customer with a 460 that needed to be rebuilt.

  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 001
    For this version, we stuck with a simple 0.060-inch overbore and used the stock crankshaft. After all, the crank looked good, as did the main bearing saddles, which were all in alignment. The new 4.420-inch bore size increases the displacement to 473 ci. Random factoid: The 429 and 460 are the two members of Ford’s 385 engine series. They were manufactured at the Lima Engine Plant in Lima, Ohio, and were in production between 1968 and 1997. We’ve seen dozens in the local self-service junkyards here in Los Angeles. Get one from a truck for cheap.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 001
    For this version, we stuck with a simple 0.060-inch overbore and used the stock crankshaft
  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 002
    While mocking this block up, Hafliger found that the deck surfaces were neither parallel with the main journal bore nor were they the same front to back. No worries, though—he intended to zero-deck the block, anyway.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 002
    While mocking this block up, Hafliger found that the deck surfaces were neither parallel w
  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 003
    The big-ticket items for this build are Trick Flow Specialties’ Power Port 290 cylinder heads. Brian chose them for this application because they have slightly smaller port sizes than some other aftermarket heads. The smaller ports raise velocity into the cylinders and offer a good compromise between power and fuel economy. With a potential for max valve lift of 0.650 inch, these things can accommodate a really big cam.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 003
    The big-ticket items for this build are Trick Flow Specialties’ Power Port 290 cylinder he
Ccrp 1207 Biggest Of The Three Blocks Killer 460 00X2

Brian's customer will use this engine in his off-road racing truck and needs it to make max power somewhere between 4,000 and 5,000 rpm. He also needs it to get good gas mileage. Of course, good is a relative term--his previous 460 struggled to average 3 miles per gallon. These constraints affected the choices Brian made when picking parts such as the cam and the intake manifold, but we still like this build because, like the Dodge, there are no exotic parts in this recipe, and it's something any of our readers can build at home.

  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 004
    Production 460 cylinder heads suffer from very restrictive exhaust ports. Not so with the ports on these Trick Flow castings. The exhaust runners measure 130 cc, but the raised exhaust-port location requires the use of a Cobra Jet header.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 004
    Production 460 cylinder heads suffer from very restrictive exhaust ports. Not so with the
  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 005
    Those are 2.200/1.760-inch valves in 74cc combustion chambers. They come with a three-angle valve job, manganese bronze guides, and Viton seals. The intake runner measures 290 cc.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 005
    Those are 2.200/1.760-inch valves in 74cc combustion chambers. They come with a three-angl
  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 006
    We ripped this chart off of TFS’ website. While it’s good to be skeptical of manufacturers’ numbers, based on our firsthand experience with Trick Flow’s heads, we have no reason to doubt them. If you can afford these heads, they are a great buy with the potential to make tons of power. On a lower budget? Look into Ford Racing’s M-6049SCJA Super Cobra Jet or Edelbrock’s 60669 Performer RPM heads.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 006
    We ripped this chart off of TFS’ website. While it’s good to be skeptical of manufacturers
Ccrp 1207 Biggest Of The Three Blocks Killer 460 00X1

This is the biggest displacement engine of the issue, and we're expecting the highest horsepower and torque from it. The price of the build will also likely be the highest because we're using aftermarket cylinder heads here, unlike in the Dodge and Chevy engines. Use this build as an outline for planning a 385-Series big-block Ford of your own. No matter what, a 460 offers huge potential for big power numbers.

  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 007
    Aftermarket rocker arms are a good investment for this build considering the sustained 4,500 rpm this engine will see in competition. While manufactured to the original 1.73:1 ratio, Trick Flow’s rockers are a lot sturdier than the OE stamped steel rocker arms.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 007
    Aftermarket rocker arms are a good investment for this build considering the sustained 4,5
  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 008
    Hafliger told us the stock connecting rods in 429/460 engines are weak and should be replaced in any performance build. Scat provided this set of forged H-beam connecting rods. They are bushed for a floating wristpin.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 008
    Hafliger told us the stock connecting rods in 429/460 engines are weak and should be repla
  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 009
    Another weak part worth replacing is the stock oil-pump drive. It can snap off, leaving you with no oil pressure and a junk engine. IMM recommends ARP’s oil-pump drive. At just $18, it’s cheap insurance.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 009
    Another weak part worth replacing is the stock oil-pump drive. It can snap off, leaving yo
  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 010
    Though this is a race engine, there is no need for forged pistons. Keith Black’s hypereutectic pistons are more than up to the task. This combination of flat-top pistons, 74cc chambers, zero deck, and Cometic’s MLS head gasket with 0.043-inch compressed thickness yields a compression ratio of 12.4:1.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 010
    Though this is a race engine, there is no need for forged pistons. Keith Black’s hypereute
  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 011
    “This manifold is a work of art,” Hafliger says of Edelbrock’s RPM Air Gap for 429/460 engines. It accepts either spread-bore or square-bore carbs and mounts to the standard intake port locations. The air-gap feature will be beneficial considering the truck will race in hot, desert conditions.
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 011
    “This manifold is a work of art,” Hafliger says of Edelbrock’s RPM Air Gap for 429/460 eng
  • Ccrp 1207 Biggest Of The Three Blocks Killer 460 012
    Here’s our 460 ready to run on IMM’s DTS engine dyno. Ignition consists of MSD’s Pro-Billet distributor and 8.5mm wires. We used Holley’s 950hp carburetor and a pair of Hooker’s Super Competition headers designed to fit Cobra Jet cars (Summit PN HOK-6201HKR). We didn’t include the carburetor and headers in the price list because those choices vary per application. End
    Ccrp 1207 Biggest Of The Three Blocks Killer 460 012
    Here’s our 460 ready to run on IMM’s DTS engine dyno. Ignition consists of MSD’s Pro-Bille
SOURCES
Hooker Headers
704 Highway 25 South
Aberdeen
MS  39730
662-369-6153
www.hookerheaders.com
Cometic Gasket, Inc.
8090 Auburn Road
Concord
OH  44077
440-354-0777
www.cometic.com
Summit Racing Equipment
PO Box 909
Akron
OH  44398
800-230-3030
330-630-0240
www.summitracing.com
IMM Engines
Indio
CA
760-347-5493
www.immengines.com
Trick Flow Specialties
1248 Southeast Avenue
Tallmadge
OH  44278
330-630-1555
www.trickflow.com
Holley
1801 Russellville Road
Bowling Green
KY  42101
270-781-9741
www.holley.com
ARP
1863 Eastman Avenue
Ventura
CA  93003
800-826-3045
www.arp-bolts.com
United Engine & Machine Co.
Carson City
NV
800-648-7970
www.kb-silvolite.com
MSD Ignition (Autotronic Controls)
1490 Henry Brennan Drive
El Paso
TX  79936
915-857-5200
www.msdignition.com
Scat Industries
1400 Kingsdale Ave.
Redondo Beach
CA  90278
310-370-5501
www.scatcrankshafts.com
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novascott
I want to start by saying i love this magazine! But I was let down by this article The title is Budget Big block and for the chevy it stayed with that theme, then it totally went a different direction with the ford 460 why? These engines are cheat to pick up. For example i am not a big ford guy but a fan of having fun so when i saw an add on craigslist for a 1970 T-bird with a 429 factory rated at 360hp and c6 with posi 9" for $1400.00 i snapped it up. Even though it is big it is a blast to beat on and there is a lot of them for cheap for sale. With that being said why couldn't you do a budget build on one of those motors instead of the high priced one you did????
novascott
I want to start by saying i love this magazine! But I was let down by this article The title is Budget Big block and for the chevy it stayed with that theme, then it totally went a different direction with the ford 460 why? These engines are cheat to pick up. For example i am not a big ford guy but a fan of having fun so when i saw an add on craigslist for a 1970 T-bird with a 429 factory rated at 360hp and c6 with posi 9" for $1400.00 i snapped it up. Even though it is big it is a blast to beat on and there is a lot of them for cheap for sale. With that being said why couldn't you do a budget build on one of those motors instead of the high priced one you did????
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