# 307 crank+350 block= 327?

**URL:** <https://community.cartalk.com/t/307-crank-350-block-327/78941>\
**Category:** General Discussion\
**Tags:** chevrolet, montecarlo\
**Created:** [April 26, 2013, 7:38pm UTC](https://community.cartalk.com/t/307-crank-350-block-327/78941 "2013-04-26T19:38:10Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![payneschroed96](https://avatars.discourse-cdn.com/v4/letter/p/6a8cbe/32.png) [@payneschroed96](https://community.cartalk.com/u/payneschroed96)\
**Post date:** [April 26, 2013, 7:38pm UTC](https://community.cartalk.com/t/307-crank-350-block-327/78941/1 "2013-04-26T19:38:10Z")

</div>

i have a 307 crank and a 350 block, and from what i have heard from people online i could make a 327 small block. I am a hobby stock driver for IMCA and i have found that a 327 or a 289 would be a perfect motor for a dirt track. is it true what i’ve heard about this online?

---

<div class="post-metadata">

**Author:** ![payneschroed96](https://avatars.discourse-cdn.com/v4/letter/p/6a8cbe/32.png) [@payneschroed96](https://community.cartalk.com/u/payneschroed96)\
**Post date:** [April 26, 2013, 7:39pm UTC](https://community.cartalk.com/t/307-crank-350-block-327/78941/2 "2013-04-26T19:39:41Z")

</div>

excuse me a 286 not a 289

---

<div class="post-metadata">

**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [April 26, 2013, 8:50pm UTC](https://community.cartalk.com/t/307-crank-350-block-327/78941/3 "2013-04-26T20:50:58Z")

</div>

What makes the number 327 perfect?

---

<div class="post-metadata">

**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [April 26, 2013, 9:01pm UTC](https://community.cartalk.com/t/307-crank-350-block-327/78941/4 "2013-04-26T21:01:42Z")

</div>

IMCA hobby stock rules state “Stroke must match block”. They want it to be simple and afordable. This rule would prevent a racer from stoking the engine to the maximum allowed displacement but your idea would also violate this rule.

Try the message board at Racing West, many experienced racers there.

[http://www.racingwest.com/](http://www.racingwest.com/)