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AS-CAST .............. PORTED
LIFT INT. EXH. INT. EXH.
0.100 88 63 88 64
0.200 146 110 146 110
0.300 203 145 211 148
0.400 242 178 249 185
0.500 276 202 284 207
0.600 296 224 301 221
NOT VERY IMPRESSIVE RESULTS,
IN MY OPINION ON THE PORT FLOW RATE INCREASE
Camshaft Specs
Unless otherwise stated, all values are in crank degrees at 0.050-inch tappet lift.
Type: Hydraulic flat-tappet
Grind: Dick Miller Custom
Lobe separation (cam degrees): 113
Installed centerline int./exh.: 108/118
Duration int./exh. at 0.006 in: 274/277
Duration int./exh. at 0.050 in: 230/234
Intake opens/closes: 7 BTDC/43 ABDC
Exhaust opens/closes: 55 BBDC/-1 ATDC
Valve lift (1.7:1 rockers), int./exh.: 0.571/0.565 in
Valvespring specs
Type: Dual with damper
Manufacturer PN: Comp 950-16
Pressure (seat): 130 lb at 1.900 in
Pressure (open): 315 lb at 1.350 in
Coil-bind height: 1.200 in
DYNO data
Southern Performance in Memphis is Miller's preferred test facility. Run on 93-octane pump premium with 36 degrees of advance, the engine rocked to the tune of 649.3 lb-ft of torque at 3,400 rpm, with 526.3 hp by 5,000 rpm. Grasp the total breadth of these curves: From 2,900 rpm through 4,400 rpm the engine made over 600 lb-ft. It made over 500 hp from 4,400 on up, and over 400 hp from 3,300 to 4,300 rpm.
RPM LB-FT HP
2,900 611.6 337.7
3,000 621.5 355.0
3,100 642.7 379.3
3,200 645.6 393.4
3,300 649.1 407.9
3,400 649.3 420.3
3,500 640.1 426.6
3,600 636.1 436.0
3,700 629.0 443.2
3,800 633.4 458.3
3.900 635.9 472.2
4,000 625.6 476.4
4,100 621.1 484.8
4,200 610.0 487.8
4,300 602.9 493.6
4,400 603.5 505.6
4,500 593.6 508.6
4,600 586.1 513.3
4,700 581.6 520.4
4,800 572.2 523.0
4,900 561.0 523.3
5,000 552.9 526.3
541ci Big Block Cadillac V8 - Torque Monster! - Engine Buildup
Blueprint Data
Except as noted, all dimensions are in linear inches. For cam and valvespring specs, see the Camshaft sidebar.
Engine type: Cadillac OHV V-8
Engine builder: Dick Miller Racing
Measures And Volumes
Displacement: 541 ci
Bore x stroke: 4.375 x 4.5
Compression ratio: 10.1:1
Main journal size: 3.25 (Cadillac)
Main bearing clearance: 0.0029-0.0034
Crankshaft endplay: 0.009
Rod-journal size: 2.20 in (big-block Chevy)
Rod-bearing clearance: 0.0029-0.0030 in
Rod side clearance: 0.021-0.024 in
Rod center-to-center: 7.0
Rod/stroke ratio: 1.56:1
Piston-to-bore clearance: 0.0069-0.0073 in
Piston compression distance: 1.547 in
Crank centerline to deck: 10.794 in
Piston deck height: 0.003 in (above block)
Head gasket compressed thickness: 0.039 in
Combustion-chamber volume: 76 cc
Piston ring gap, first groove: 0.028-0.032 in
Piston ring gap, second groove: 0.025-0.028 in
Piston ring gap, oil groove: 0.022-plus in
Camshaft endplay: 0.002-0.005 in
Piston-to-valve clearance: 0.100-plus in
Critical Tightening Values
With Torco MPZ assembly lube
ARP head and main studs: 100 lb-ft
ARP rocker-arm studs: 55 lb-ft
ARP intake bolts: 35 lb-ft
With Oliver assembly lube
ARP bolts in Oliver rods: 30 lb-ft initial; rotate 40 degrees clockwise; recheck torque-should be at least 50 lb-ft
With red thread-locking compound
ARP flexplate bolts: 85 lb-ft
Grade-8 damper bolt: 85 lb-ft
Grade-8 timing-chain bolts: 35 lb-ft
Cam fuel-pump eccentric bolt: 65 lb-ft
Tune-Up
Test facility: Southern Performance
Peak power at rpm: 526.3 hp at 5,000
Peak torque at rpm: 649.3 lb-ft at 3,400Fuel: 93-octane unleaded pump gas
Timing: 36 degrees
Spark plugs: NGK R-5671A-7, gapped at 0.055
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AS-CAST .............. PORTED
LIFT INT. EXH. INT. EXH.
0.100 88 63 88 64
0.200 146 110 146 110
0.300 203 145 211 148
0.400 242 178 249 185
0.500 276 202 284 207
0.600 296 224 301 221
NOT VERY IMPRESSIVE RESULTS,
IN MY OPINION ON THE PORT FLOW RATE INCREASE
Camshaft Specs
Unless otherwise stated, all values are in crank degrees at 0.050-inch tappet lift.
Type: Hydraulic flat-tappet
Grind: Dick Miller Custom
Lobe separation (cam degrees): 113
Installed centerline int./exh.: 108/118
Duration int./exh. at 0.006 in: 274/277
Duration int./exh. at 0.050 in: 230/234
Intake opens/closes: 7 BTDC/43 ABDC
Exhaust opens/closes: 55 BBDC/-1 ATDC
Valve lift (1.7:1 rockers), int./exh.: 0.571/0.565 in
Valvespring specs
Type: Dual with damper
Manufacturer PN: Comp 950-16
Pressure (seat): 130 lb at 1.900 in
Pressure (open): 315 lb at 1.350 in
Coil-bind height: 1.200 in
DYNO data
Southern Performance in Memphis is Miller's preferred test facility. Run on 93-octane pump premium with 36 degrees of advance, the engine rocked to the tune of 649.3 lb-ft of torque at 3,400 rpm, with 526.3 hp by 5,000 rpm. Grasp the total breadth of these curves: From 2,900 rpm through 4,400 rpm the engine made over 600 lb-ft. It made over 500 hp from 4,400 on up, and over 400 hp from 3,300 to 4,300 rpm.
RPM LB-FT HP
2,900 611.6 337.7
3,000 621.5 355.0
3,100 642.7 379.3
3,200 645.6 393.4
3,300 649.1 407.9
3,400 649.3 420.3
3,500 640.1 426.6
3,600 636.1 436.0
3,700 629.0 443.2
3,800 633.4 458.3
3.900 635.9 472.2
4,000 625.6 476.4
4,100 621.1 484.8
4,200 610.0 487.8
4,300 602.9 493.6
4,400 603.5 505.6
4,500 593.6 508.6
4,600 586.1 513.3
4,700 581.6 520.4
4,800 572.2 523.0
4,900 561.0 523.3
5,000 552.9 526.3
541ci Big Block Cadillac V8 - Torque Monster! - Engine Buildup
Blueprint Data
Except as noted, all dimensions are in linear inches. For cam and valvespring specs, see the Camshaft sidebar.
Engine type: Cadillac OHV V-8
Engine builder: Dick Miller Racing
Measures And Volumes
Displacement: 541 ci
Bore x stroke: 4.375 x 4.5
Compression ratio: 10.1:1
Main journal size: 3.25 (Cadillac)
Main bearing clearance: 0.0029-0.0034
Crankshaft endplay: 0.009
Rod-journal size: 2.20 in (big-block Chevy)
Rod-bearing clearance: 0.0029-0.0030 in
Rod side clearance: 0.021-0.024 in
Rod center-to-center: 7.0
Rod/stroke ratio: 1.56:1
Piston-to-bore clearance: 0.0069-0.0073 in
Piston compression distance: 1.547 in
Crank centerline to deck: 10.794 in
Piston deck height: 0.003 in (above block)
Head gasket compressed thickness: 0.039 in
Combustion-chamber volume: 76 cc
Piston ring gap, first groove: 0.028-0.032 in
Piston ring gap, second groove: 0.025-0.028 in
Piston ring gap, oil groove: 0.022-plus in
Camshaft endplay: 0.002-0.005 in
Piston-to-valve clearance: 0.100-plus in
Critical Tightening Values
With Torco MPZ assembly lube
ARP head and main studs: 100 lb-ft
ARP rocker-arm studs: 55 lb-ft
ARP intake bolts: 35 lb-ft
With Oliver assembly lube
ARP bolts in Oliver rods: 30 lb-ft initial; rotate 40 degrees clockwise; recheck torque-should be at least 50 lb-ft
With red thread-locking compound
ARP flexplate bolts: 85 lb-ft
Grade-8 damper bolt: 85 lb-ft
Grade-8 timing-chain bolts: 35 lb-ft
Cam fuel-pump eccentric bolt: 65 lb-ft
Tune-Up
Test facility: Southern Performance
Peak power at rpm: 526.3 hp at 5,000
Peak torque at rpm: 649.3 lb-ft at 3,400Fuel: 93-octane unleaded pump gas
Timing: 36 degrees
Spark plugs: NGK R-5671A-7, gapped at 0.055
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