Power Parts
When discussing the cam and valvetrain, Philips went into detail about the Buick's limitations in an all-out application. "Because of what we have to deal with on the Buick in terms of installed height, valve length, and the spring, you are lucky to get much over 1.850-inch installed height, and the spring diameter is also restricted. On the cam, you have to work around the valvespring limitations, and start there. The spring setup I came up with gave me 210 pounds on the seat and 600 pounds open, and I was limited to .650-inch lift. I specifically selected a cam grind that will work within these spring restrictions, with less aggressive, subtle lobes that wouldn't upset the valvetrain." The cam works in conjunction with T/A Performance solid roller lifters, COMP 3/8-inch pushrods, and 1.6:1 ratio T/A Performance replacement-style shaft-mounted roller rocker arms.

Topping the engine is a set of T/A Performance Track Eliminator heads. These heads feature intake runners that are raised a quarter inch from the stock position, and are fitted with 2.250-/1.750-inch valves. The heads were fully ported by Philips, with epoxy added to help match the port runners to his intake manifold configuration. The heads flowed about 365 cfm on the intake side. Philips went to a steeper-than-standard valve angle when cutting the valve job, looking for more than a flow advantage. “I went to a 50-degree valve seat. With the 50-degree seat you change the way the force acts on the valve when it closes, making it less likely to bounce the valve.”

Bridging the gap between the intake ports is a single-plane intake manifold from T/A Performance, though Philips prefers the SPX intake designed for standard port location heads. He says: "We've run the other intake on the dyno, and I find more power with this one. We get these from T/A performance without the CNC work, and match them up to the ports on the heads." As with the cylinder heads, the manifold was treated to full porting, and then topped with a 1,250-cfm Quick Fuel Technology carburetor. Philips was impressed with the capabilities of the large carb: "We put that carb on the engine and within one jet change and three changes to the high-speed bleeds, it was right on. It is a fabulous piece."

At the 2012 AMSOIL Engine Masters Challenge, Philips’ Buick definitely stood out amongst the field of purpose-built racing engines. Unlike most of those specialty pieces, the Buick relied upon OEM production architecture throughout. It is no exaggeration to claim that the unusual combination garnered a tremendous amount of attention from the engine builders and spectators at the event. Most claimed to have never even seen a Buick engine achieve the 8,000-plus rpm required at the competition. Confidently, Philips put the Buick through its paces with a minimum of tuning and fuss, and the house was alight with the buzz of seeing the engine handily achieving the required rpm, and more astonishingly, posting output topping the 800hp mark. If Philips set out to showcase the performance potential of the Buick engine, and the capabilities of Automotive Machine & Performance in getting the most out of them, there is little doubt that he walked out of the dyno cell a winner.

By The Numbers466ci Buick
Bore: 4.360 inches
Stroke: 3.900 inches
Displacement: 466 ci
Compression ratio: 14.1:1
Camshaft: T/A Performance solid roller
Camshaft duration: 272/280 degrees at .050-inch tappet rise
Valve lift: .673/.672 inch
Rocker ratio: T/A Performance 1.6:1 ratio
Piston rings: JE 1/16, 1/16 & 3/16 inch
Piston: JE forged
Block: OEM Buick production
Crankshaft: OEM Buick production
Rods: Manley 6.800 inches
Cylinder head: T/A Performance
Intake valve diameter: 2.250 inches
Exhaust valve diameter: 1.750 inches
Intake manifold T/A Performance
Carburetor: Quick Fuel, 1,250 cfm
Header: Montgomery 2.125-inch primary
Ignition: MSD
Damper: T/A Performance
Oil: AMSOIL 10W40
Fuel: VP Q16

On The Dyno 466ci Buick
RPM: TQ: HP:
4,000 553 421
4,200 567 454
4,400 581 487
4,600 603 528
4,800 615 562
5,000 642 612
5,200 659 652
5,400 661 680
5,600 661 705
5,800 659 728
6,000 661 755
6,200 654 772
6,400 647 788
6,600 634 797
6,800 619 802
6,900 610 802
7,000 601 801
7,200 583 799
7,400 561 791
7,600 539 780
7,800 524 779
8,000 508 774

SOURCE
Automotive Machine
5-86/-296-6501