Vortec L31 cylinder head
(Add link, image; minor clean up) |
(→Pushrod guide holes) |
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So what this means is three things- | So what this means is three things- | ||
| − | • | + | • Without resorting to welding up the holes to form slots to provide side to side alignment, Vortec heads cannot be used w/non self aligning rockers unless guide plates are used. Can use guide holes, OR guide plates, OR self aligning rockers, but only ONE of the three. |
• If using 1.6 ratio rockers, there's a chance the Vortec's 7/16" hole will not be long enough. A Lewis tool will not work, so the best bet is to use a drill bit larger than 7/16" to open the holes up. Most often a 1/2” bit is used, I would use only as much size as was needed, but 1/2” will work. | • If using 1.6 ratio rockers, there's a chance the Vortec's 7/16" hole will not be long enough. A Lewis tool will not work, so the best bet is to use a drill bit larger than 7/16" to open the holes up. Most often a 1/2” bit is used, I would use only as much size as was needed, but 1/2” will work. | ||
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