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Project Sten TPI Engine Buildup

A V8 for the Sten

By , Photography by

Flow Numbers
Dart 180

Valve Lift Intake (cfm) Exhaust w/ pipe (cfm) Intake Percentage (%)
0.100 62 52 84%
0.200 121 113 93%
0.300 175 144 82%
0.400 210 167 79%
0.500 209 175 84%
0.600 209 177 84%

Cam Specs

Cam Duration at 0.050 Lift (inches) Lobe separation
TPIS ZZ9, Intake 212 0.483 112 degrees
Exhaust 226 0.520

Engine Specs

Block 1988 1 piece rear main seal
Bore 4.0030
Stroke 3.48
Main boring clearance 0.0026
Rod boring clearance 0.0028
Crankshaft endplay 0.005
Rod side clearance 0.018
Piston to wall clearance 0.002
Piston to deck clearance 0.015
Compression ratio 9.25:1
Top ring end gap 0.024
Second ring end gap 0.030
Valve sizes 2.02/1.60
Rocker arm ratio 1.5:1
Valvesprings 1.25 diameter

*All dimensions are in inches

Parts List

Description PN Source Price
350 short-block Used Friend $100.00
F-M cast pistons H345NP30 Internet 75.16
Sealed Power moly rings ZWR934335 Summit Racing 30.99
Sealed Power main bearings 4663MA10 Summit Racing 35.99
Sealed Power rod bearings 2555CP10 Summit Racing 27.12
Sealed Power cam bearings 1235M Summit Racing 17.99
Dart 180cc iron heads 10221111 Summit Racing 1,177.52
TPIS hyd. roller camshaft 6.CAM105 TPIS 375.00
TPIS TPI chip Level 12 TPIS 275.00
TPIS adj. fuel pressure regulator 1.FPR002 TPIS 69.95
TPIS air foil 1.AF001 TPIS 49.95
TPI manifold Used Friend 50.00
GM TPI computer 1227730 Boneyard 25.00
Mr. Gasket intake gasket 5820 Summit Racing 17.95
Fuel injectors, 22 lb/hr 280150759 Used 20.00
Summit hyd. roller camshaft HT-214 Summit Racing 120.00
Comp pushrods 7608-16 Summit Racing 103.95
Comp rocker arms 1418-16 Summit Racing 188.95
Milodon 1 pc. oil pan 31 501 Summit Racing 161.95
Milodon oil pump 18755 Summit Racing 31.95
Milodon oil pump pickup 18307 Summit Racing 35.95
TPI manifold Used Swap meet 50.00
Painless wiring harness 60103 Summit Racing 387.95
Painless emission harness 60314 Summit Racing 25.95
Painless VATS module 64023 Summit Racing 53.95
TPI distributor Used Swap meet 5.00
Total $3,513.22

SOURCES
Comp Cams
3406 Democrat Road
Memphis
TN  38118
800-999-0853
http://www.compcams.com
Jim Grubbs Motorsports
28130 Avenue Crocker
# 331
Valencia
CA  91355
661-257-0101
Summit Racing
Akron
OH
800-230-3030
330-630-0240
http://www.summitracing.com/
Painless Performance
2501 Ludelle Street
Fort Worth
TX  76105
817-244-6212
www.painlessperformance.com
Rock Auto
6680 Odana Road
Madison
WI  53719
866-762-5288
http://www.rockauto.com
Jaguars That Run
Livermore
CA
925-462-3619
http://www.JagsThatRun.com
Milodon Inc.
2250 Agate Court
Simi Valley
CA  93065
805-577-5950
www.milodon.com
Tuned Port Induction Specialties (TPIS)
952-448-6021
http://www.TPIS.com
Federal-Mogul Corporation
26555 Northwestern Hwy.
Southfield
MI  48033
248-354-7700
www.federal-mogul.com
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