THE ULTIMATE STOCK LS CYLINDER HEAD TEST! (241, 799/243, 317, 706)

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An OVERVIEW on the 4.8 and 5.3! | Let me explain why they’re overpowered!

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JUNKYARD 4.8L \u0026 5.3L POWER UPGRADES! HOW TO ADD 130+HP TO YOUR LS! HOW TO SWAP HEADS, CAM AND INTAKE

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BOOST VS HEAD FLOW-WHAT STOCK HEAD SHOULD YOU PICK FOR A TURBO LS? 706 VS 317-DOES MORE FLOW MATTER?

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second start truck norris in 5.3 706 heads.

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Cold start. BTR “Hot Rod” cam. 5.3 with “As cast” 706 heads.

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HOW TO MAKE 500+ HP WITH STOCK 706 HEADS. 706 VS 799 VS LY6 VS TFS HEAD TEST! 514 HP WITH 232 CFM!

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5.3L Vortec Cracked Heads (Castech 706)

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I PUT 706 HEADS ON MY BOOSTED 5.3 👀😌

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TURBO LS HEAD TEST-706 vs 317 (BEST FOR BOOST?)

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The 6.0L Rematch-Stock 706 vs 799 Head Test

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5.3 Heads Repaired Right. #706#headreaper#ls#chevy #silverado#becauseracetruck @outfitsgarage88

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Project Mean and Green Part 3: Installing 5.3 706 Cylinder Heads

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HOW TO: THE ULTIMATE 510-HP, ALL MOTOR JUNKYARD 5.3L BUILD. STEP BY STEP BUILD \u0026 FULL DYNO RESULTS

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What the inside of a chevy 5.3 with cracked 706 castech heads looks like

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These 5.3LS can make BIG power! | But how much?

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Porting the Heads on a 5.3 LS

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Stock # ou812 All Aluminum Chevy 5.3 LS Engine, Flat Top Pistons, 706 Heads, Cam

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CAN YOU RUN REC-PORT LS3-STYLE HEADS ON A SMALL BORE 4.8L/5.3L? WILL REC-PORT HEADS EVEN FIT A 4.8L?

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Cleaning 706 Heads For 5.3 LSX Engine Swap

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