Ford Racing 347 Series Handbook page 25

Ford Racing 347 Series Sealed Engine Handbook
• D347SR – Valve spring installed height revised to 1.750" – 1.800". Pages 7,10, 13 &
14
Revision 2010-3 8/3/2010
• Bronze and iron valve guides are used in production on M-6007-S347JR engines.
Page 9.
• Valve spring pressure for the M-6007-S347JR engines updated due to new valve
spring source. Pages 9 & 15.
• Roller lifters are sourced from 2 locations – photos of both are added. Page 9.
• Rocker arms are sourced from several suppliers including COMP, Crower, Crane and
Scorpion – and may have a different visual appearance. Rocker ratios are not
changed with the Mfg. Page 10.
• Added crankshaft identification photos added. Page 6.
Revision 2010-4 8/24/2010
• S347JR – Optional M-6513-BH valve spring added. Installed height revised of 1.800".
Pages 8,9,13,15,and 19
• S347JR – Optional M-6049-X307 cylinder head and combustion chamber CC spec of
58cc added. Pages 9,13,15, and 19.
Revision 5 3/4/2011
• S347JR & D347SR – PAC Valve Spring 1218 replaces COMP 26918 in production
engines. PAC 1218 spring is added as an optional spring in addition to the COMP
26918. Pages 8, 9, 11, 13, 18 &19
• M-6007-D347SR Sealed Racing Engine Valve Option
o Effective January 1, 2011, a 7MM intake and exhaust valve for the M-6007-
D347SR engine has been added as a replacement option. It will be the option
of the sanctioning body to approve the use of these valves for competition.
o The approved valve is sourced only from REV and is a solid stem stainless
steel valve.
The approved part numbers are:
o
• 7MM Intake valve - Ford Racing M-6507-SR7MM or REV PN X813
• 7MM Exhaust valve – Ford Racing M-6505-SR7MM or REV PN X914
• 7MM Valve guide – Ford Racing M-6510-SR7MM or REV PN VG9450
Revision 6 10/8/12
• SCAT Crankshaft photos added. Pages 6, 27-28.
• S347JR & D347SR – M-6500-R302H hydraulic roller lifter added as the standard roller
lifter. PN M-6500-R302 lifter previously used in production is also allowed. Pages
10,11,13
• Maximum compression ratio is 10.0:1. Page 15
• Added Tech Inspection information added. Pages 16-18.
• 7MM Valve conversion parts list added. Page 19.
• M-6049-Z304D Service replacement head added. Paged 8 and 21.
No part of this document may be reproduced without the prior agreement and written permission of Ford Racing
Issue Date January 25, 2013 Revision #7
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