
Ford Racing 347 Series Sealed Engine Handbook
Issue Date January 25, 2013 Revision #7
No part of this document may be reproduced without the prior agreement and written permission of Ford Racing
11
D347SR & D347SR7 - Technical Specifications
Engine Part Number
M-6007-D347SR or M-6007-D347SR7
Displacement
347 cubic inches
Block
M-6010-BOSS302
Cast Iron; 4 Bolt Main (center 3)
Bore
4.030"
Stroke
3.400"
Crankshaft
M-6303-C340 Forged Steel Internally Balanced
Main journal size
2.250"
Rod journal size
2.123"
Stroke
3.40"
Weight
49.0 lbs. +/- 0.5 lbs
Balance offset
Neutral balance
Part number/Manufacturer
432300105090/SCAT
Vibration Damper
M-6316-C351
Connecting Rod
SCAT 2-1CR5400-927 - Forged Steel - 5.400" C-C
Piston
Mahle SBF090030F06 Forged Aluminum
Bore
4.030"
Dish or dome volume
6 cc effective dish
Ring set part number
Mahle supplied
Compression height
1.090
Weight
Individually balanced
Pin oiling type
Thru ring
Pin bore diameter
0.927"
Piston material
forged aluminum 4032
Camshaft
M-6250-F303 Hydraulic Roller
Lifter part number
M-6500-R302H
Cam Timing
Position "0" (multi index crank sprocket)
Int./Ex. Lobe Centerlines
109° Int. Centerline/119° Ex. Centerline
Camshaft Duration
226° @ .050" lift (int. and ex.)
Camshaft Lift - int. and ex.
0.320" Lobe Lift - 0.528” at valve (calculated)
Cylinder Head – D347SR
M-6049-Z304DA – Aluminum
Cylinder Head – D347SR7
M-6049-Z304DA7 - Aluminum
Chamber Volume
63.0 cc
Compression Ratio
10.0:1 (maximum)
Intake Valve – 11/32”/7MM
Ford Racing M-6507-A304/M-6507-A3047
Intake Valve Length
5.340"
Intake Valve Diameter
2.020"
Exhaust Valve– 11/32”/7MM
Ford Racing M-6505-B304/M-6505-A3047
Exhaust Valve Diameter
1.600"
Exhaust Valve Length
5.365"
Intake & Exhaust Valve Stem Diameter D347SR – 11/32” D347SR7 – 7MM
Valve spring/Locator PN
M-6513-BH / M-6536-BH
Approved optional spring
COMP 26918 or PAC 1218
Valve spring installed height
1.750" – 1.800"