Ford Racing 347 Series Handbook
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Ford Racing 347 Series Handbook

Racing 347 series sealed engine
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Ford Racing 347 Series Sealed Engine Handbook
347 Series Sealed Racing Engine
Sanctioning Body Specifications Handbook
S347JR
D347SR/D347SR7
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
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  • Page 1 Ford Racing 347 Series Sealed Engine Handbook 347 Series Sealed Racing Engine Sanctioning Body Specifications Handbook S347JR D347SR/D347SR7 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...

  • Page 2: Table Of Contents

    For more information on Ford Racing Sealed Racing engines, contact Mike Delahanty 313- 845-1995 or mdelaha3@ford.com 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...
  • Page 3 Any sign of tampering or removal is easy to detect. 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...
  • Page 4 Ford Racing 347 Series Sealed Engine Handbook Shown below is a close-up of the Ford racing factory seal with "FRT" and 6 digit seal number with each seal having a unique number. Ford Racing maintains complete records of each Factory Original seal number, its location and the engine to which it belongs.

  • Page 5: Block

    49.00 lbs. (+/- 0.5 lbs) • Balance offset Neutral balance • SCAT Part number 432300105090 • Crankshaft manufacturer Scat 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...
  • Page 6 All of the rod throws have a lightening hole as shown See page 27 for more Crankshaft identification photos 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...
  • Page 7 • D347SR and S347JR - Factory installation is the 0 degree position on the crankshaft gear 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...
  • Page 8 • Valve spring closed pressure - 130 lbs. @1.800" • Valve spring open pressure - 313 lbs. @ 1.175" 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...
  • Page 9 • Valve seals on both intake and exhaust • Uses self aligning roller rockers – 1.6:1 ratio 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...
  • Page 10 • D347SR7 lifters use a hardened steel lifter pushrod cup 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...

  • Page 11: Crankshaft

    Approved optional spring COMP 26918 or PAC 1218 Valve spring installed height 1.750" – 1.800" 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...

  • Page 12: Cylinder Heads

    0.343" Exhaust valve Ford Racing M-6505-G302 Exhaust valve head diameter 1.540" Exhaust valve length 5.078" 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...
  • Page 13 Valve lash ½ to ¾ turn maximum Intake Manifold Edelbrock 7521 Performer RPM Air Gap 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...

  • Page 14: Operating And Tune-Up Info

    .0018"-.0022" Valve Lash 0 Lash plus ¼ turn Pre-load – ½ to ¾ turn maximum 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...
  • Page 15 Note 1 – valve spring installed height achieved by +/- 0.050” valve locks or valve spring shims 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...
  • Page 16 • All seat cuts are concentric to the valve stem centerline 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...

  • Page 17: Z304Da Head Tech Specs

    Dimension A Measuring the Bowl Cut Dimension A measurement taken at the bottom of bowl cut 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...
  • Page 18 Maximum Intake Port Opening Width – 1.305” Height - 2.205” 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...
  • Page 19 13171-8 titanium valve lock is removed as an alternate PN in revision #7. 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...

  • Page 20: Torque Specifications

    Oil pickup tube to oil pump 12-18 Loctite 242 CYLINDER HEAD TORQUE CHART INTAKE MANIFOLD TORQUE SEQUENCE 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...

  • Page 21: D347Sr & D347Sr7 Parts List

    AUTOMOTIVE RACING PRODUCTS M-6049-Z304DA FORD RACING (Z304D is the service CYL HEAD M-6049-Z304D replacement head PN) 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...
  • Page 22 JR 131 DIPSTICK & TUBE 351HP CAM BEARINGS VS13264T RUBBER V/C GASKET PK-131 CRANK KEY 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...

  • Page 23: S347Jr Parts List

    ROLLER CAMSHAFT COMP CAMS M-6253-A50 ROLLER CAM CONV. KIT FORD RACING M-6268-A302 TIMING SET FORD RACING 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...
  • Page 24 OEM distributor. This is a running change January 2010. Pages 16 & 18. Revision 2010-2 4/5/2010 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...
  • Page 25 • 7MM Valve conversion parts list added. Page 19. • M-6049-Z304D Service replacement head added. Paged 8 and 21. 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...
  • Page 26 Hydraulic roller Hydraulic roller Ignition/Distributor Distributor Type MSD Electronic None Included MSD Electronic None Included 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...

This manual is also suitable for:

S347jrD347srD347sr7

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