Cam 107cu.in 2003 pitbull

Energy One
mleach72

mleach72

Well-Known Member
Some 107's came with the 600. Put your engine serial number into look-up tool on the S&S website. It should tell you what cam was installed at the factory. If you have the 600, I wouldn't change it. If you have the 520, the 585 is a great upgrade. The 600 will produce a few more top end hp, but the 585 will be a better cam where you spend 90% of your riding time.
 
christer wernersson

christer wernersson

New Member
Hi all have this installed on my 107 pitbull 2003


107UNASM ENG,BD BULK(OBS) |
107"(BULK)ENGINE, 4"X4-1/4" (BIG DOG M/C) |
*******DO NOT ASSEMBLE******** |
11-0446GG1 SUPER G EMISSIONS CARB |
16-2526 MANIFOLD |
32-2148 FW ASSEMBLY, 4-1/4"STROKE |
31-0047 CRANKCASE, 4"BORE, 92-99 SS BT W/CP MACH |
31-0298 GRCOVER,(POL)BILLET(BIG DOG) |
31-6205BD BILLET OIL PUMP, W/UNIVERSAL COVER |
90-1009WOS 4" PATTERN HEADS (WITHOUT STUDS).640"LIFT |
91-7021MF CYL KIT, 4"X4-1/4" BT (MFG) |
90-4916-2 COMPRESSION RELS PLUG KIT |
33-5073-S CAMSHAFT (520) 84-99 V2 BT |
33-5319 POL. TAPPET BLOCK SET, 84-99 BT |
90-4065 ROCKER ARMS |
90-4095 ROCKER BOXES, CHROME DIE CAST |
90-4036 ROCKER ARM SHAFT SET |
91-7021 CYL KIT, 4" X 4-1/4"

Can i buy 585 kit its really hard from sweden
Think i need electrical realese too its hard to start		04/08/20
 
mleach72

mleach72

Well-Known Member
christer wernersson said:
Hi all have this installed on my 107 pitbull 2003


107UNASM ENG,BD BULK(OBS) |
107"(BULK)ENGINE, 4"X4-1/4" (BIG DOG M/C) |
*******DO NOT ASSEMBLE******** |
11-0446GG1 SUPER G EMISSIONS CARB |
16-2526 MANIFOLD |
32-2148 FW ASSEMBLY, 4-1/4"STROKE |
31-0047 CRANKCASE, 4"BORE, 92-99 SS BT W/CP MACH |
31-0298 GRCOVER,(POL)BILLET(BIG DOG) |
31-6205BD BILLET OIL PUMP, W/UNIVERSAL COVER |
90-1009WOS 4" PATTERN HEADS (WITHOUT STUDS).640"LIFT |
91-7021MF CYL KIT, 4"X4-1/4" BT (MFG) |
90-4916-2 COMPRESSION RELS PLUG KIT |
33-5073-S CAMSHAFT (520) 84-99 V2 BT |
33-5319 POL. TAPPET BLOCK SET, 84-99 BT |
90-4065 ROCKER ARMS |
90-4095 ROCKER BOXES, CHROME DIE CAST |
90-4036 ROCKER ARM SHAFT SET |
91-7021 CYL KIT, 4" X 4-1/4"

Can i buy 585 kit its really hard from sweden
Think i need electrical realese too its hard to start		04/08/20
Click to expand...
How many miles are on your bike? If it's low, you can get away with just changing the cam. If you are up over 20k miles, it would be a good idea to change the lifters. The 520 creates a bunch of compression, so the engine can be difficult to start, even with compression releases. I would recommend the 585. It closes the intake valve slightly later than the 520, so the engine should turn over a bit easier. You won't be disappointed with the 585.
 
christer wernersson

christer wernersson

New Member
mleach72 said:
How many miles are on your bike? If it's low, you can get away with just changing the cam. If you are up over 20k miles, it would be a good idea to change the lifters. The 520 creates a bunch of compression, so the engine can be difficult to start, even with compression releases. I would recommend the 585. It closes the intake valve slightly later than the 520, so the engine should turn over a bit easier. You won't be disappointed with the 585.
Click to expand...
Hi i live in sweden and we have KM/H but i have ride 87000miles or 140000 km

need problaby hole set its difficult for me to buy in usa
 
mleach72

mleach72

Well-Known Member
christer wernersson said:
Hi i live in sweden and we have KM/H but i have ride 8700miles
Click to expand...
You should be good with just changing the cam then. All you will need is the cam and the cam cover gasket. You can do it yourself. It's not hard. There is a tutorial by member Bowhunter. Do a search. For the parts, go to bigdogpartskingpin.com or wildsteedworx.com. I believe they ship international.
 
mittens

mittens

Active Member
No just removed the Cam Chest cover, swapped cams, and measured the thrust washers/ shims, and then back together.
 
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