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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 

 

Crankshaft Identification 

 

  

 

  
 

 

   

 

 
 
 

See page 27 for more Crankshaft identification photos

There may be light 
grinding on the side of 
the rod throw for final 
balance tuning 

The SCAT Part number is 
located in the first counterweight 
but is often partially hidden by 
the balancing heavy metal and 
the metal finishing of the area  
 

All of the rod throws have a lightening hole as shown 
 

Summary of Contents for D347SR

Page 1: ...k 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 1 347 Series Sealed Racing Engine Sanctioning Body Specifications Handbook S347JR D347SR D347SR7 ...

Page 2: ... Specs 11 12 S347JR Technical Specs 12 13 Operating and Tune Up Info 14 Service Info and Specs 14 D347SR Rebuild Specs 15 S347JR Rebuild Specs 15 Tech Inspection Information 16 Z304DA Head Tech Specs 17 7MM Valve Conversion Option 18 Torque Specifications 19 D347SR D347SR7 Parts List 20 21 S347JR Parts List 22 23 Revision Summary 24 25 Ford Racing 347 Series Specs vs GM Crates 26 Crankshaft Finish...

Page 3: ...it serial number Factory built engines are sealed at the factory by 6 seals in 3 locations Oil pan rail left and right side Front cover 2 on the top left and right of the front cover Intake Manifold one on the drivers side front and one on the passenger side rear Cap plug seals are a two piece design The base is secured by the bolt and encapsulates the head of the bolt This base includes fingers t...

Page 4: ...nd 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 Oil pan seal location one on each side of the oil pan Sanctioning Body Sealing Each sanctioning body is encouraged to use the Ford Racing Factory sealing process of cap seals should engine teardown or repairs be nec...

Page 5: ...Crankshaft D347SR D347SR7 S347JR M 6303 C340 Main journal size 2 250 Rod journal size 2 123 Stroke 3 400 Material Forged Steel Weight 49 00 lbs 0 5 lbs Balance offset Neutral balance SCAT Part number 432300105090 Crankshaft manufacturer Scat Block M 6010 BOSS302 Bore diameter 4 030 Main bearing bore 2 248 Main cap torque 100 Inner 35 outer Main cap material Nodular Iron Bore spacing 4 380 Block de...

Page 6: ...Ford Racing 6 Crankshaft Identification See page 27 for more Crankshaft identification photos There may be light grinding on the side of the rod throw for final balance tuning The SCAT Part number is located in the first counterweight but is often partially hidden by the balancing heavy metal and the metal finishing of the area All of the rod throws have a lightening hole as shown ...

Page 7: ...l end uses a bronze bushing Uses ARP 8740 3 8 Cap Screw Bolds Piston D347SR D347SR7 S347JR Timing Set D347SR D347SR7 S347JR Mahle Forged Aluminum Piston PN SBF090030F06 Bore 4 030 Compression Height 1 090 with rail Forced pin oiling and round wire locks Weight w o pin 395 grams 10 0 compression ratio 6cc piston dish volume Ring Pack 1 5 1 5 3 0mm rings Mahle PN 4035MS 15 Mahle 4 035 Service Piston...

Page 8: ... Z304D NOTE 0 110 0 130 flat washer is used under the rocker arm stud in some production heads to achieve the correct thread engagement Cylinder Heads D347SR7 Ford Racing Aluminum M 6049 Z304DA7 Service replacement head PN is M 6049 Z304D Same as M 6049 Z304DA except for the 7MM valves o M 6507 D3047 Intake Valve o M 6505 D3047 Exhaust Valve Valve Spring D347SR D347SR7 S347JR Beehive valve spring ...

Page 9: ...6049 X306 or Ford Racing Aluminum M 6049 X307 Cast combistion chamber Chamber Volume 58cc nominal Intake Valve 1 94 diameter Total length 5 078 Exhaust Valve 1 54 diameter Total length 5 078 Both intake and exhaust valves are stainless steel with swirl polished heads with an undercut stem Both iron and bronze valve guides are used in the production heads Valve seals on both intake and exhaust Uses...

Page 10: ... Crower Rocker Arm S347JR Ford Racing Roller Rocker Arm M 6564 B351 1 6 1 ratio Thru bolt pedestal mounted NOTE Various rocker manufacturers are used in production including COMP Crane and Scorpion Roller Lifter D347SR D347SR7 S347JR Ford Racing hydraulic roller lifter M 6500 R302H or M 6500 R302 Uses loose tie bar and valley mounted retainer plate Production lifters have come from different sourc...

Page 11: ...e 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...

Page 12: ...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 SCAT 432300105090 Connecting rod Center to center length 5 400 Material Forged Steel Floating or press fit Floating Connecting rod PN Manufacturer SCAT 2 1CR5400 927 Piston manufacturer Mahle Bore 4 030 Dish or dome volume 6 cc effective dish Ring set part number Mahle supp...

Page 13: ...tainer Part Number M 6514 BH steel Valve lock angle 10 degrees Valve lock M 6518 BH Camshaft 35 410 8 Comp Cam Hydraulic roller Cam Timing Position 0 multi index crank sprocket Intake Centerline Lobe separation angle 106 110 Advertised duration Intake 260 002 lift Advertised duration Exhaust 260 002 lift Duration 050 Intake 206 Duration 050 Exhaust 206 Valve lift intake at valve calculated 0 533 V...

Page 14: ...or 20w 50 Brad Penn Max Oil Temperature 280 F Coolant Temperature 195 F Thermostat recommended Spark Plugs AGSP 32C Firing Order 1 3 7 2 6 5 4 8 Fuel Pressure carburetor 6 7 psi Engine Service Information and Specifications Standard Operating Specifications Main Bearing Clearance 0020 0025 Rod Bearing Clearance 0020 0025 Crankshaft End Float 005 007 Wrist Pin to Rod Clearance 0010 0012 Wrist Pin t...

Page 15: ...shaft installation D347SR 0 position on crank gear Camshaft timing D347SR 109 degree intake centerline 1 Ground on 114 lobe separation angle Note 1 valve spring installed height achieved by 0 050 valve locks or valve spring shims S347JR Engine Rebuild Specifications Crankshaft weight 49 00 lbs 0 50 lbs Piston to Deck Distance 010 Below Deck 0050 Head gasket minimum compressed thickness 038 M 6051 ...

Page 16: ...5 0 160 NOTE 0 110 0 130 flat washer is used under the rocker arm stud in some production heads to achieve the correct poly lock thread engagement on the rocker arm stud Valve Spring Installed Height Valve spring installed height achieved by 0 050 valve locks or valve spring shims Pushrod Length To accommodate the different brand roller rocker arms used in production pushrod lengths of 6 500 6 800...

Page 17: ...t the prior agreement and written permission of Ford Racing 17 Z304DA Z304DA7 Head Tech Specs Intake Port Exhaust Port Dimension A Throat diameter 1 810 0 020 1 385 0 020 Dimension B Distance from seat insert bottom to take Dimension A 0 350 020 0 200 020 Measuring the Bowl Cut Dimension A measurement taken at the bottom of bowl cut ...

Page 18: ...e M 6049 Z304DA Heads have been used on various Ford Racing Crate Engines since 2006 Earlier heads from these street crate engines were not factory installed on Ford Racing M 6007 D347SR Sealed Racing Engines The heads used to build all D347SR Sealed Racing engines can be identified by the size of the intake port opening ALL D347SR Sealed Racing Engines use a casting with the same intake port dime...

Page 19: ...cing M 6507 D3047 or REV PN X813 7MM Exhaust valve Ford Racing M 6505 D3047 or REV PN X914 7MM Valve guide Ford Racing 502 7MM 210 E6 or REV PN VG9450 7MM Head Conversion Parts List Part Number Description Qty Req Supplier New Parts Req d 13171T 8 titanium VALVE LOCKS 10 Degree 2 Various Yes 13171 8 steel VALVE LOCKS 10 Degree 2 Various Yes REV X914 7MM EXHAUST VALVE FOR M 6049 Z304DA 8 REV Yes RE...

Page 20: ...3 8 inch 35 45 Engine oil Rod bolts 50 ARP Moly rod bolt lube Head studs into block 3 5 Loctite 242 Head nuts 95 105 Engine oil Rocker studs 60 65 Loctite PFT Intake manifold bolts 18 20 Loctite 242 Flywheel bolts 75 80 Loctite 242 or dry seal Vibration damper bolt 90 Engine oil Oil pump to block 28 35 Loctite 242 Oil pickup tube to main stud 28 35 Loctite 242 Cam bolt 40 45 Loctite 242 Cam retain...

Page 21: ...F351 WATER PUMP EDELBROCK D8TZ 7600 A PILOT BRG INA USA CORP DOOZ 8597 B BY PASS HOSE GOODYEAR TIRE RUBBER CO E6DZ 6700 A FRONT COVER SEAL SKF SEALING SOLUTIONS E7AZ 6A674 A PAN RAIL L MEANS INDUSTRIES E7AZ 6A674 B PAN RAIL R MEANS INDUSTRIES EAD 6397 B TRANS DOWEL HURON INC EDC 6378 A CRANK DAMPER WASHER GENERAL FASTENERS EOAZ 6626 B OIL PUMP GASKET FREUDENBERG NOK F1SZ 6701 A REAR MAIN SEAL FREU...

Page 22: ...TD M 6500 R302H HYD ROLLER LIFTER EATON CORPORATION M 6564 F351 ROCKER ARM CRANE CAMS M 6582 E302P VALVE COVER FORD RACING M 6600 D2 OIL PUMP MELLING TOOL M 6605 B302 OIL PUMP SHAFT FORD RACING M 9424 D302 INTAKE MANIFOLD EDELBROCK M 9439 A50 INTAKE MANIFOLD GSKT FEDERAL MOGUL FelPro 1262S 3 MS 590 H MAIN BRG CLEVITE ENGINE PARTS SBF090030F06 FORGED PISTON RING SET MAHLE MOTORSPORTS INC 6441489 WR...

Page 23: ...7AZ 6A674 A PAN RAIL L FORD DEALER SALES E7AZ 6A674 B PAN RAIL R FORD DEALER SALES EAD 6397 B TRANS DOWEL FORD DEALER SALES EDC 6378 A CRANK DAMPER WASHER FORD DEALER SALES EOAZ 6626 B OIL PUMP GASKET FORD DEALER SALES F1SZ 6701 A REAR MAIN SEAL FORD DEALER SALES F1TZ 6023 A TIMING POINTER FORD DEALER SALES F2AE 6890 AA OIL FILTER INSERT FORD DEALER SALES F2SE 6500 AA HYD ROLLER LIFTER FORD DEALER...

Page 24: ...OOVE LOCK SPACER KIT PART OF PISTON KIT M 6565 L302 PUSHRODS 16 PACK FORD RACING M 6588 A50 CHANNEL KIT ROCKER ARM FORD RACING M 6529 A302 ROCKER ARM SHIM KIT FORD RACING 42910 S CAM PLATE BOLTS GENERAL FASTENER 6100SB or M 6622 D347SR OIL SCREEN C2OE 6A008 A2 HEAD DOWELS FORD DEALER SALES CP6100LT or M 6675 D347SR OIL PAN CHAMP PANS CP 6100LT OR Ford Racing M 6675 D347SR JR 131 DIPSTICK TUBE CHAM...

Page 25: ...ges 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...

Page 26: ...e 4 bolt Production 4 bolt BOSS 302 Race 4 bolt Production 4 bolt Intake Manifold Mfg type Edelbrock Victor JR GMPP Single Plane Edelbrock Performer RPM GMPP Dual Plane Crankshaft Material SCAT Forged Steel GM Forged Steel SCAT Forged Steel GM Nodular Iron Connecting Rod Material SCAT Forged Steel GM Powdered Metal SCAT Forged Steel GM Powdered Metal Floating or press fit floating w bronze bushing...

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