# Needs motor

**URL:** <https://community.cartalk.com/t/needs-motor/36826>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, 2500\
**Created:** [September 19, 2009, 7:49am UTC](https://community.cartalk.com/t/needs-motor/36826 "2009-09-19T07:49:45Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![cr454bigblock](https://avatars.discourse-cdn.com/v4/letter/c/3e96dc/32.png) [@cr454bigblock](https://community.cartalk.com/u/cr454bigblock)\
**Post date:** [September 19, 2009, 7:49am UTC](https://community.cartalk.com/t/needs-motor/36826/1 "2009-09-19T07:49:45Z")

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i have a 1991 chevy truck 4x4 5.7 can i put a5.3 327 in that truck will things match and will the brain work

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**Author:** ![Beadsandbeads](https://avatars.discourse-cdn.com/v4/letter/b/c57346/32.png) [@Beadsandbeads](https://community.cartalk.com/u/Beadsandbeads)\
**Post date:** [September 20, 2009, 3:36am UTC](https://community.cartalk.com/t/needs-motor/36826/2 "2009-09-20T03:36:56Z")

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Ask at a GM truck board.

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**Author:** ![FoDaddy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/fodaddy/32/717_2.png) [@FoDaddy](https://community.cartalk.com/u/FoDaddy)\
**Post date:** [September 20, 2009, 4:58am UTC](https://community.cartalk.com/t/needs-motor/36826/3 "2009-09-20T04:58:15Z")

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Unlikely, your 350 is an older TBI engine with a primitive ECU. If you’re thing about one of the newer 5.3L’s (which is a 325 not a 327) you’ll have to get a new ECU. The Gen III/IV 4.8/5.3L are far more sophisticated in terms of electronics than the old TBI 350. It would be far cheaper just to rebuild what you have or buy a crate 350.