Earlier this year we bolted a cam and headers on a 5.3L Gen III called Little Bro and made 458 hp at a screaming 6,600 rpm. That engine revealed the potential of a lesser-known family of iron-block GM ...
If you are new to the LS scene or haven't spent much time online, or at events, or near other LS owners, you might have missed the first or second "big bangs." Originally, the big bang test was ...
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