YerDugliness said:
Chuck, I'm wondering how much machining is necessary on your blocks as delivered (other than final boring & honing of the cyllinders)--they sure look good as-is, but in my experience there is always something that needs tweaking. Will they accommodate solid roller cams/lifters?
Doug
Doug,
From the Man O'War spec sheet:
"Note: “C” designates 8.200 - 302 blocks, which require 351 style pan, pickup and pump and distributor shaft modification.
Block Applications: The Man O’War blocks are designed to be a replacement for the small block Ford one piece seal applications, with dipstick located in timing cover. On rear pan seal it will be necessary to snip off nubs on ends of gasket so that it will fit flush against block.
Block Material: High density Cast iron
Deck Height: 8.200, 9.200 or 9.500 (depending on part number)
Deck Thickness: Approximately .600
Cam Bearings: Standard Small Block Ford Cam bearings or Clevite # SH510S or Durabond # F-18. These fit 8.2, 9.2 or 9.5 deck blocks.
Note: When installing cam bearings
MAKE SURE the oil hole in the bearings is inline with the oil feed hole to the main bearings.
Main Bearings: Utilizes 2.248 or 2.749 Ford style main bearings. (Depending on main size of block) All blocks regardless of main journal size utilize a one piece rear main seal such as a Fel-Pro MS590 (for 2.248 size) or MS1010 (for 2.749 size) or equivalent.
Main Caps: All five main caps are four bolt billet caps with the center three being of the splayed design. The inner row of bolts are ½ inch thread, the outer row of bolts are 7/16 thread, and the outer 4 corner bolts are 3/8 thread. Torque specs on main bolts are: 105 ft. lbs. inner and 65 ft. lbs. outer and 35 ft. lbs. on the outer 4 corner bolts with oil.
Lifter Bores: Indexed (Lifter bore size is standard Ford diameter .8750)
Maximum Bore: All blocks can be bored safely to a maximum of 4.200
Cylinder Bores: Cylinder bores are of a siamese design. Because of increased wall thickness, no steam holes are needed for street use.
Cylinder Wall Thickness: @ 4.200 bore cylinder wall thickness will be .200
Head gaskets: Must use Fel-Pro # 1031L and 1031R or equivalent to ensure water jacket coverage.
Water Jackets: Expanded for better cooling.
Gear Drives & Belt Drives: Due to the expanded water jackets, it is not recommended to run gear drives because of clearance issues with the backside of the idler gears and the cylinder block in the timing cover area. Jesel belt drives will work with minor grinding of the block and/ or belt drive cover.
Lubrication: There are 2 oil scavenge holes. One hole each is located on both front and back of block but will need special hardware. (13/16 AN) We recommend 20W-50 oil.
Oil System Features: As is, block is set up for OE style internal oil pump. Block has provisions to be converted to a dry sump oiling system. (On “C” blocks you must use 351 style oil pan, pump, pick up, and distributor but have the oil pump drive rod cut to length.)
Oil Restrictors: Man O’War blocks use oil restrictors special to the block, part # 832665-2. If feeding engine from the front there is only one restrictor needed on front of block. If engine is rear fed you will need 2 restrictors on back of the block.
Filtration: Integral mount for spin on filter
Oil Pan Rails: Solid (stock width) clearanced for 4.250 stroke with steel rods. Splayed cap blocks may have oil pan interference with the front and rear main caps. It may be necessary to hand fit the oil pan.
Clearance: Man O’War blocks can handle up to a 4.250 inch stroke with a 6.300 inch steel H-beam style connecting rod.
Camshaft: In long rod and stroker combinations it is recommended to use a camshaft with a small base circle.
Fuel Pump: Uses stock style fuel pump and stock length fuel pump pushrod.
Starter: Starter mounting pad is drilled for standard bolt patterns.
Motor Mounts: Drilled and tapped for side mounts in OEM locations.
Cylinder Head Bolt Holes: Threads are ½” diameter. Head bolt holes are blind tapped and do not extend into the water jackets. Threads are recessed ½” below the deck for greater clamping loads. Bolts or studs need to be ½ “ longer than stock. (FOR 9.500 DECK BLOCKS, World #’s 832585 for bolts and # 832552 for studs).
IT IS THE BUILDER’S RESPONSIBILITY TO DETERMINE WHAT BOLTS OR STUDS USED HAVE THE PROPER ENGAGEMENT TO PREVENT STRIPPING THE THREADS.
Definitions and Dimensions:
Bare Block
Due to a vast difference of opinion among professional builders regarding specifications and procedures, all blocks, when purchased bare, are finished within Ford +/- tolerances. Blocks are supplied with the following specs:
Deck Height: 8.205, 9.205 or 9.505 +/- .005.
Cylinder Bore: 3.990 or 4.115 +/- .005.
Main Journals: 2.248 : 2.4416 +/- .0005.** 2.749 : 2.9421 +/- .0005.** 3.000 : 3.1926 +/- .0005.
Lifter Bores: .8750 +/- .0005.
Stroke Notch: 8.200 – 3.500. 9.200 & 9.500 – 4.250.
It is the responsibility of the engine builder to finish the block to his or the end user’s preferences. Freeze plugs, oil galley plugs and cam bearings are not included or installed. However, stock Ford hardware can be used except freeze plugs which measure 1 5/8 inch.
Prepped Block
Man O’War blocks when purchased prepped, will be sized to the above specs with the following exception: Cylinder Bores: 4.000, 4.125 or 4.155. All prepped blocks will be painted and have dowel pins, freeze plugs, cam bearings and oil galley plugs installed. The block will just need a final cleaning and be ready for assembly (due to anti-rust applied). "
To add to that, the cam tunnels can be bored for up to 60mm roller bearing cams, which we do as an option. Most of this will hold true for the aluminum blocks (non-C-Block) too.
Yes, solid rollers are fine.
Hope this post is not too long.
Chas
