Pontiac V8 Hi-Torq Hydraulic Flat Tappet Cams and Cam Kits
Butler's Own Street Ladder — Hi-Torq Hydraulic Flat Tappet Cams and Cam Kits for Pontiac V8s
The Hi-Torq hydraulic flat tappet grinds are Butler's own Street Performance ladder for the Pontiac V8, ground by Comp Cams to Butler's spec. Six steps from 250/260 to 284/296 advertised, and every one of them on a 112 lobe separation rather than the 110 the catalog book grinds use.
That wider separation is the whole idea: more vacuum and a cleaner idle at a given duration, which is what a street car with power brakes and a stock-ish converter actually wants. Butler offers each grind as the cam alone, as a cam and lifter kit with Hy-Lift Johnson 852B lifters, or as a full master kit.
Browse Hi-Torq Hydraulic Flat Tappet Cams and Cam Kits Products
Items 1-21 of 21
Butler/Comp Hi-Torq Street Performance Cam, Hyd FT, 250/260, 206/212, .432/.444, 112 Hyd. CCA-BP6010SPNew
Lift .432"/.444"
Duration 250/260
RPM Range 600-4800
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break-...
Description: Lift .432"/.444"
Duration 250/260
RPM Range 600-4800
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break-in process.
Item #: CCA-BP6010SP
Condition: New
Price: $299.95
Butler/Comp Hi-Torq Street Performance Cam and Lifter Kit, Hyd FT, BPI-CL-BP51-000-5FTNew
Butler/Comp SP Street Performance Cam and Lifter Kit, Hyd FT, Choose your own lobes
Description: Butler/Comp SP Street Performance Cam and Lifter Kit, Hyd FT, 284/296, 240/246, .507/.510, 112 Hyd.
Item #: BPI-CL-BP6018SP
Condition: New
Price: $549.95
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Butler/Comp Hi-Torq Street Performance Cam, Hyd FT, 256/268, 212/218, .447/.455, 112 Hyd. CCA-BP6011SPNew
Lift .447"/.455"
Duration 256/268
RPM Range 1000-5200
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break...
Description: Lift .447"/.455"
Duration 256/268
RPM Range 1000-5200
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break-in process.
Item #: CCA-BP6011SP
Condition: New
Price: $299.95
Butler/Comp Hi-Torq Street Performance Cam, Hyd FT, 262/270, 218/224, .462/.470, 112 Hyd. CCA-BP6012SPNew
Lift .462"/.470"
Duration 262/270
RPM Range 1300-5500
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break...
Description: Lift .462"/.470"
Duration 262/270
RPM Range 1300-5500
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break-in process.
Item #: CCA-BP6012SP
Condition: New
Price: $299.95
Butler/Comp Hi-Torq Street Performance Cam, Hyd FT, 268/280, 224/230, .477/.480, 112 Hyd CCA-BP6013SPNew
Lift .477"/.480"
Duration 268/280
RPM Range 1600-5800
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break...
Description: Lift .477"/.480"
Duration 268/280
RPM Range 1600-5800
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break-in process.
Item #: CCA-BP6013SP
Condition: New
Price: $299.95
Butler/Comp Hi-Torq Street Performance Cam, Hyd FT, 274/286, 230/236, .490/.490, 112 Hyd CCA-BP6014SPNew
Lift: .490''/.490''
Duration: 274?/286?
RPM Range: 1800-6000
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensiv...
Description: Lift: .490''/.490''
Duration: 274?/286?
RPM Range: 1800-6000
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more...More Details »
Item #: CCA-BP6014SP
Condition: New
Price: $299.95
Butler/Comp Hi-Torq Street Performance Cam, Hyd FT, 284/296, 240/246, .507/.510, 112 Hyd. CCA-BP6018SPNew
Lift: .507''/.510''
Duration: 284?/296?
RPM Range: 2300-6500
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extens...
Description: Lift: .507''/.510''
Duration: 284?/296?
RPM Range: 2300-6500
Lobe Separation 112
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more...More Details »
Item #: CCA-BP6018SP
Condition: New
Price: $299.95
Butler/Comp Hi-Torq Street Performance Cam & Lifter Master Kit Pontiac Hyd FT, 268/280, 224/230, .477/.480, 112 Hyd. BPI-K-BP6013SPNew
Butler/Comp SP Street Performance Cam and Lifter Master Kit, Hyd FT, 268/280, 224/230, .477/.480, 112 Hyd.
Comp Custom Grind Flat Tappet Cam/Pontiac- Hydraulic
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break-in process.
Description: Comp Custom Grind Flat Tappet Cam/Pontiac- Hydraulic
Notice: All flat tappet cams require break-in oil and the use of oil additives. They also require a more extensive break-in process.
More About Hi-Torq Hydraulic Flat Tappet Cams and Cam Kits
1. The Six Steps
All six Hi-Torq hydraulic flat tappet grinds are on 112 lobe separation. Each is listed as advertised duration, duration at .050", and valve lift.
250/260, 206/212 at .050", .432/.444 lift
the mildest. A stock-rebuild cam with better manners than the factory grind and no demands on the rest of the car.
256/268, 212/218 at .050", .447/.455 lift
the classic first step up, and a safe pick behind a stock converter and highway gear.
262/270, 218/224 at .050", .462/.470 lift
a noticeable idle and real midrange, still without a converter change on most combinations.
268/280, 224/230 at .050", .477/.480 lift
where the cam starts driving the rest of the build. Heads, intake and exhaust should be doing something by here.
274/286, 230/236 at .050", .490/.490 lift
a single-lift grind, intake and exhaust the same, for a built street engine.
284/296, 240/246 at .050", .507/.510 lift
the largest of the six. Compression, converter and gear all need to be chosen for it.
Comp also grinds a custom hydraulic flat tappet on Butler's core if none of the six suit, available as a cam, a cam and lifter kit, or a master kit with your own lobes.
2. Why 112 Lobe Separation Instead of 110
The COMP Xtreme Energy book grinds Butler also stocks are ground on 110. These are on 112, and at the same duration that changes the car.
More vacuum
a wider separation reduces overlap, which is what a power-brake booster, a vacuum-advance distributor and a PCV system are all living on.
Cleaner idle
less choppiness at the curb and an easier idle to tune, particularly with an automatic.
Broader top end
the trade is a little less peak midrange than the same duration on a tighter separation. On a street car that trade is usually worth making.
If you want the chop and are willing to give up vacuum for it, the 110-separation book grinds are the other side of that decision.
3. Cam, Cam and Lifter Kit, or Master Kit
Cam only
the camshaft alone. Pair it with new lifters, never used ones.
Cam and lifter kit
adds the CCA-852B-16 Hy-Lift Johnson hydraulic lifter set, made in the USA.
Master kit
cam and lifters plus a double roller billet timing set, valve springs chosen for your head type, chromoly retainers, locks and valve stem seals for cast iron heads with a machined guide boss.
On the master kits the spring choice follows the cylinder head: one set for cast iron D-port heads, a different set for cast iron Super Duty and Ram Air IV castings and Edelbrock heads. Tell Butler what heads are going on and the kit comes matched.
4. Flat Tappet Break-In
Butler flags this on every flat tappet product for good reason: all flat tappet cams require break-in oil and the use of oil additives, and they require a more extensive break-in process.
ZDDP
the zinc and phosphorus in break-in oil or an additive is what keeps the lobe and the lifter face from welding themselves together in the first minutes.
Break-in spring pressure
use the correct seat pressure for break-in rather than the final race-spring pressure, then change over once the cam is in.
New lifters every time
a used lifter has a wear pattern that will not match a new lobe.
Run it properly
varied rpm well above idle for the first twenty minutes, with the ignition timing and cooling sorted beforehand.
Not sure what your Pontiac needs?
Call our tech team at 866-762-7527. Tell us your engine, heads, car, and power goal, and we will put the parts together as one combination that works.
