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The Vernatone Round is the original style that has been used by boat builders and boaters worldwide for over 40 years.
If you have any questions or need help, contact us.
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Application: All Inboards
Fuel type: Gas/Diesel
Waterline: Above only
Sound rating: Good
Note: for 10"-14" range please reference our Vernatone MKII round or the MKII Dual Stage round.
Vernatone Installation Sheet
| VERNATONE™ ROUND |
| |
A |
B |
C |
D |
| |
IN/OUT |
I/O LENGTH |
LENGTH |
DIAMETER |
| Part # |
INCHES |
MM |
INCHES |
MM |
INCHES |
MM |
INCHES |
MM |
| 1000103 |
2.50 |
64 |
3.00 |
76 |
21.62 |
549 |
5.58 |
142 |
| 1000145 |
3.00 |
76 |
3.50 |
89 |
20.12 |
511 |
7.07 |
180 |
| 1000104 |
3.00 |
76 |
3.50 |
89 |
25.84 |
656 |
0.71 |
18 |
| 1000105 |
3.50 |
89 |
3.50 |
89 |
30.00 |
762 |
8.09 |
205 |
| 1000165 |
4.00 |
102 |
3.50 |
89 |
25.50 |
648 |
9.06 |
230 |
| 1000106 |
4.00 |
102 |
3.50 |
89 |
33.69 |
856 |
9.06 |
230 |
| 1000107 |
4.50 |
114 |
4.00 |
102 |
35.62 |
905 |
10.10 |
257 |
| 1000108 |
5.00 |
127 |
4.40 |
112 |
38.75 |
984 |
11.00 |
279 |
| 1000112 |
6.00 |
152 |
5.00 |
127 |
31.43 |
798 |
12.20 |
310 |
| 1000111 |
6.00 |
152 |
5.00 |
127 |
41.50 |
1054 |
12.20 |
310 |
| 1000117 |
6.00 |
152 |
6.00 |
152 |
39.62 |
1006 |
16.21 |
412 |
| 1000113 |
6.00 |
152 |
6.00 |
152 |
52.75 |
1340 |
16.21 |
412 |
| 1000245 |
6.50 |
165 |
5.75 |
146 |
41.50 |
1054 |
12.25 |
311 |
| 1000299 |
6.63 |
168 |
5.75 |
146 |
52.75 |
1340 |
16.21 |
412 |
| 1000120 |
8.00 |
203 |
6.00 |
152 |
39.62 |
1006 |
16.21 |
412 |
| 1000119 |
8.00 |
203 |
6.00 |
152 |
52.75 |
1340 |
16.21 |
412 |
| 1000246 |
8.50 |
216 |
6.00 |
152 |
52.75 |
1340 |
16.25 |
413 |
The following table is for general recommendations only:
IN & OUT SIZE / MAXIMUM H.P. |
Dia. A |
Gasoline |
Diesel |
1.50" or 1.63" |
30 |
10 |
2.00" |
60 |
25 |
2.50" |
110 |
40 |
3.00" |
160 |
60 |
3.50" |
220 |
85 |
4.00" |
280 |
125 |
4.50" |
320 |
170 |
5.00" |
370 |
210 |
6.00" |
440 |
280 |
8.00" |
-- |
420 |
10.00" |
-- |
680 |
12.00" |
-- |
900 |
14.00" |
-- |
1150 |
NOTE: For V-Block engines where twin exhaust lines are desired, divide the H.P. by two and then match to the appropriate size.
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