S&S Cycle Manifold/Engine Measuring Tools - Manual (Page 3)

Manifold Measuring Tools
Harley-Davidson
® Twin Cam 88 ® and Evolution ® engines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-0076
S&S ® Super Stock ® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-0077
S&S B1-style (4-bolt flange) . . . . . . . . . . . . . . . . . . . . . . 53-0079
Shovelhead/ironhead . . . . . . . . . . . . . . . . . . . . . . . . . . 53-0075*
Baisley-style Oval or Round . . . . . . . . . . . . . . . . . . . . . . 53-0078
Engine Measuring Tools
S&S, Evolution
® , Twin Cam 88 ® . . . . . . . . . . . . . . . . . . . 53-0070
S&S B1-style (4-bolt flange) . . . . . . . . . . . . . . . . . . . . . . 53-0073
Shovelhead/ironhead . . . . . . . . . . . . . . . . . . . . . . . . . . 53-0075*
Baisley-style Oval or Round . . . . . . . . . . . . . . . . . . . . . . 53-0072
*Tool works for measuring both engine and manifold sizes.
Required Tools
1-
Spring caliper, inside micrometer or, telescoping gauge
2- Dial or electronic caliper
MANIFOLD MEASURING
Manifold Measuring Tools—53-0076, 53-0077, 53-0079,
53-0075, 53-0078
1- Place manifold on a flat, solid surface, or hold it securely
in your hand.
2- Slide the tools over the ends of the manifold runners
make sure you do not have to force them in place
and that the flat inner surface bottoms on the end of
the ports.
3- Measure the distance between the tools. See Picture 1.
The conical cutouts in the tools provide parallel surfaces
to take the measurement from.
4- Add .030” to all engine measurements (.028
Shovelhead/ironhead-style)--this compensates for the
manifold to head clearance.
5- Multiply final measurement by 100 to get the
manifold number.
3
These charts are standard S&S manifold sizes. If the size you need is
not on these charts you need a special order manifold.
NOTE: The size code of the manifold is actually the distance
between the front and rear intake port centerlines measured in
1/100th of an inch.
Example: A size 410 manifold measures 4.10 inches from port to port. Picture 1
S&S ® MANIFOLD SIZE CONVERSION CHART FOR HARLEY-DAVIDSON ®
EVOLUTION ® AND TWIN CAM 88 ® ENGINES AND SPORTSTER ® MODELS
Engine Displacement
Old Manifold New Manifold
Size Number Size Number
Stock 883, 1100, 1200, 79" 0 341
91" Sportster * 343
79" S&S Retro Big Twin 1 355
100" Sportster 1+ 357
100" Retro Big Twin 2 - 361
89" Sportster 3 374
100" Evolution Big Twin 5++ 387
88" & 100" Evolution Big Twin 6 397
111" S&S 4 1 ⁄
8
” Bore * 398
100" Twin Cam 88 ® * 405
93" & 113" Evolution Big Twin 7 406
117" S&S 4 1 ⁄
8
” Bore * 408
Stock Evolution Big Twin & Twin Cam 88 8 410
107" Twin Cam 88 * 414
98" Evolution Big Twin 9 416
124" S&S 4 1 ⁄
8
” Bore * 417
103" Evolution Big Twin & Sportster 12 426
116" Twin Cam 88 * 428
* No old number exists for this manifold length.
It was introduced after the new system was initiated.
MANIFOLD SIZE CONVERSION CHART FOR SHOVELHEAD
& IRONHEAD HARLEY-DAVIDSON ® SPORTSTER ® MODELS
Engine Displacement
Old Manifold New Manifold
Size Number Size Number
Stock Shovelhead & Ironhead Sportster 0 220
93" High Compression Shovelhead 0+ 222
93" Shovelhead * 225
96" Shovelhead 1 228
98" Shovelhead 3 235
103" Shovelhead 5 242
* No old number exists for this manifold length.
It was introduced after the new system was initiated.