# USDM alum block I6's ?

**URL:** <https://forums.speedlife.net/t/usdm-alum-block-i6s/44048>\
**Category:** NYSpeed Automotive\
**Created:** [February 26, 2008, 11:20am UTC](https://forums.speedlife.net/t/usdm-alum-block-i6s/44048 "2008-02-26T11:20:17Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![ImportMuscle](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/importmuscle/32/7615_2.png) [@ImportMuscle](https://forums.speedlife.net/u/ImportMuscle)\
**Post date:** [February 26, 2008, 12:44pm UTC](https://forums.speedlife.net/t/usdm-alum-block-i6s/44048/6 "2008-02-26T12:44:48Z")

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GM’s straight 6 is a fucking BEEFY Motor. A shop down south built a turbo kit for it and on a totally stock motor it put down 515 RWHP.

Theyre New, so theyre gonna be a bit hard to find, but heres one on ebay

[http://cgi.ebay.com/ebaymotors/2004-TRAILBLAZER-4-2L-ENGINE-26K-WARR-AVAILABLE\_W0QQcmdZViewItemQQcategoryZ33615QQihZ004QQitemZ140203090084](http://cgi.ebay.com/ebaymotors/2004-TRAILBLAZER-4-2L-ENGINE-26K-WARR-AVAILABLE_W0QQcmdZViewItemQQcategoryZ33615QQihZ004QQitemZ140203090084)

On a side note…

Standard in TrailBlazer LT models, the Vortec 4.2L I-6 engine generates 285 hp — unsurpassed in its class(1) — at 6000 rpm and 276 lb.-ft. of torque at 4600 rpm. :eek:

PS: the top ends on all of GM’s new RWD inline motor’s (2.9, 3.7 ,and 4.2) are all designed and built by Honda.

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