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3L Gen 4 Block with Darton Sleeves
107 LSA) this combination made 496HP/479TQ and with the upgrade to the FED Boostline Cylinder Heads made over 500HP
Bore Sizes Available from 3
Fits LS engines with long and short head bolts (Pre-2003)
Anti-carbon build up
5.3L LS Long Block - Street Series Head Bolts 3L Gen 4 Block withOur street series 5. 3 long block is the perfect choice to replace or upgrade that tired stock 5. 3 in your ride. Whether you are wanting stock idle for mommas grocery getter or some nasty chop for the hot rod, this long block build can get you there on a budget. Take a look at the camshafts we recommend for this build or let us know what camshaft you want in yours. If you plan on adding a power adder down the road you should consider upgrading to one
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