Grind Number |
Valve Lift 1.5 |
Valve Lift 1.6 |
Duration @.050" |
Lobe Separation |
Opening at .050" |
Closing at .050" |
Springs for 1.5 |
Springs for 1.6 |
Tappet Lift |
Angle |
Tappet Lift |
Tappet Lift |
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HTL3742BS |
INT .534" |
INT .570" |
237° |
109° |
12° BTC |
45° ABC |
1128 |
1128 |
EXH .543" |
EXH .579" |
242° |
53° BBC |
10° ATC |
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HTL4248BS |
INT .542" |
INT .578" |
242° |
106° |
16° BTC |
47° ABC |
1107 |
1107 |
EXH .560" |
EXH .597" |
248° |
55° BBC |
13° ATC |
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HTL4652BS |
INT .555" |
INT .592" |
246° |
108° |
18° BTC |
48° ABC |
1128 |
1128 |
EXH .572" |
EXH .610" |
252° |
57° BBC |
15° ATC |
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HTL4852BS |
INT .560" |
INT .597" |
248° |
108° |
19° BTC |
49° ABC |
1128 |
1128 |
EXH .567" |
EXH .605" |
252° |
58° BBC |
16° ATC |
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HTL5054BS |
INT .588" |
INT .627" |
250° |
108° |
21° BTC |
49° ABC |
1128 |
1128 |
EXH .600" |
EXH .640" |
254° |
59° BBC |
15° ATC |
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HTL5256BS |
INT .567" |
INT .605" |
252° |
108° |
21° BTC |
51° ABC |
1128 |
1128 |
EXH .575" |
EXH .613" |
256° |
59° BBC |
17° ATC |
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HTL5660BS |
INT .573" |
INT .611" |
256° |
108° |
23° BTC |
53° ABC |
1128 |
1128 |
EXH .584" |
EXH .622" |
260° |
62° BBC |
19° ATC |
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HTL6064BS |
INT .582" |
INT .621" |
260° |
108° |
26° BTC |
55° ABC |
1128 |
1128 |
EXH .588" |
EXH .627" |
264° |
63° BBC |
21° ATC |
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HTL6468BS |
INT .594" |
INT .634" |
264° |
108° |
27° BTC |
57° ABC |
1128 |
1128 |
EXH .611" |
EXH .651" |
268° |
65° BBC |
23° ATC |
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HTL6872BS |
INT .611" |
INT .651" |
268° |
108° |
29° BTC |
59° ABC |
1128 |
1128 |
EXH .620" |
EXH .661" |
272° |
67° BBC |
25° ATC |
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HTL7276BS |
INT .620" |
INT .661" |
272° |
108° |
31° BTC |
69° ABC |
1128 |
1128 |
EXH .629" |
EXH .670" |
276° |
61° BBC |
27° ATC |
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HTL7680BS |
INT .629" |
INT .670" |
276° |
108° |
33° BTC |
63° ABC |
1128 |
1128 |
EXH .633" |
EXH .675" |
280° |
71° BBC |
29° ATC |
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HTL8087BS |
INT .633" |
INT .675" |
280° |
108° |
35° BTC |
65° ABC |
1128 |
1128 |
EXH .644" |
EXH .686" |
287° |
75° BBC |
33° ATC |
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HTL8287BS |
INT .638" |
INT .680" |
282° |
108° |
36° BTC |
66° ABC |
1128 |
1128 |
EXH .644" |
EXH .686" |
287° |
75° BBC |
33° ATC |