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		<title>GM 454 7.4L V8 L19: Complete Expert Guide to Performance, Reliability, Common Problems &#038; Maintenance</title>
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		<pubDate>Sat, 21 Mar 2026 01:33:28 +0000</pubDate>
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		<category><![CDATA[454 engine problems]]></category>
		<category><![CDATA[454 maintenance]]></category>
		<category><![CDATA[454 performance]]></category>
		<category><![CDATA[454 reliability]]></category>
		<category><![CDATA[454 repair costs]]></category>
		<category><![CDATA[454 specifications]]></category>
		<category><![CDATA[454 troubleshooting]]></category>
		<category><![CDATA[454 tuning]]></category>
		<category><![CDATA[7.4L V8 issues]]></category>
		<category><![CDATA[big block Chevy problems]]></category>
		<category><![CDATA[Chevrolet 454 L19]]></category>
		<category><![CDATA[GM truck engine]]></category>
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					<description><![CDATA[Introduction: The Workhorse Big Block That Powers America&#8217;s Heavy-Duty Fleet &#8220;Why does the GM 454 L19 simultaneously earn praise as an unbreakable torque monster yet frustrate owners with fuel economy that makes gas stations a second home?&#8221; This paradox defines one of America&#8217;s most enduring truck engines. The GM 454 cubic inch (7.4-liter) V8 L19 ... <a title="GM 454 7.4L V8 L19: Complete Expert Guide to Performance, Reliability, Common Problems &#38; Maintenance" class="read-more" href="https://engineguide.net/gm-454-l19-engine-expert-guide-problems-repair/" aria-label="Read more about GM 454 7.4L V8 L19: Complete Expert Guide to Performance, Reliability, Common Problems &#38; Maintenance">Read more</a>]]></description>
		
		
		
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