Rectangle Intake Manifold Adapter Plates Compatible with LS1 Cathedral Port Cylinder Head to LS3 LSA ZL1 CTS-V ‎551316 Silver
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GM LS1, LS2, LS6 - Individual Throttle Body Kit (ITB) Intake - Cathedral Port LS Manifold
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LS Heads: Cathedral-Port vs. Square-Port Heads
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300-117 Hi-Ram EFI Aluminum Intake Manifold Kit with 102mm Throttle Body/Fuel rail Compatible with GM LS3 L76 L92 L99 Chevy 6.0L 6.2L V8 Engine 102 Silver
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LS Cathedral Port Cylinder Head to Rectangle Port Intake Manifold Adapters | 551316 - ICT Billet
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LS3 Intake on Cath Port Heads With Adapters! The LS3 intake is arguably the best factory GM intake ever made, but does it work with cath-rec port adapters used for LSA blower installs? Anyone else ever tried or tested this? The answer is it will bolt on, but the LS3 intake with adapters makes less power (by 18 hp) than just running a TBSS or Dorman LS2. I wanted this to work so bad back in 2018 when I tested it, but it just didn’t pan out. Get a cath port intake! Make sure to check out the sales
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FacebookRichard Holdener
#SpeedSecrets Factory rectangular port heads outflow factory cathedral port heads on a 6.0L LS. But how much power can you expect to gain from a set of PORTED cathedral port heads? Will they outperform the rectangular port heads? And just how important is intake manifold choice with a top-end upgrade? Watch the test and get answers: | Summit Racing Equipment
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