# 91 305 engine ?

**URL:** <https://forums.speedlife.net/t/91-305-engine/189411>\
**Category:** PittSpeed Automotive\
**Created:** [April 20, 2007, 2:45pm UTC](https://forums.speedlife.net/t/91-305-engine/189411 "2007-04-20T14:45:13Z")\
**Posts on this page:** 2\
**Page:** 5

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**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\
**Post date:** [October 13, 2008, 5:25pm UTC](https://forums.speedlife.net/t/91-305-engine/189411/81 "2008-10-13T17:25:52Z")

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> [@Election Day](https://forums.speedlife.net/t/election-day/38270/50):
>
> just oval out the holes till the bolts will align and go into the head. Not a big deal

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**Author:** ![BooSSted\_SS](https://avatars.discourse-cdn.com/v4/letter/b/5f9b8f/32.png) [@BooSSted\_SS](https://forums.speedlife.net/u/BooSSted_SS)\
**Post date:** [October 31, 2008, 9:17pm UTC](https://forums.speedlife.net/t/91-305-engine/189411/82 "2008-10-31T21:17:33Z")

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When i did mine i just did a little at a time with a drill bit until they fit. Take your time and you should be fine. You don’t want to rush. I used a 92 TPI base and put it on the old style heads.

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