LSx Long Blocks

LSx long blocks from 500hp to 2500hp+ fully balanced and blueprinted. For forced induction or normally aspirated engines.

ACE Performance is the only company to offer COMPLETE long blocks, our engines aren’t shipped naked without valve covers or oil pans, they are complete and ready to drop into your vehicle!

We also offer an optional dyno tuning service on all long blocks or turnkey engine builds.

All long block engines come with 12 months limited warranty. Tuning, install or user errors are not covered by our warranty.

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