High Horse Performance, Inc.Answer
Oct 28, 2022 - 12:00 PM
Stage 1 Heads: (Stock Hollow Stem Valves, Springs & Retainers w/New Bronze Valve Guides) If you are just installing these ported and polished heads and intake without the installation in the near future of an aggressive cam then you will need our Stage 1 Heads Package. If you are installing the HHP Stage 1 Custom Cam, then you will only need to select our Stage 1 Heads Package to go with it if you choose to combine the two.
Stage 2 Heads: (Stock Hollow Stem Valves, PSI Valve Springs, Manley Titanium Retainers w/New Bronze Valve Guides) If you are installing a fairly aggressive high lift cam, such as our HHP Stage 2 or higher Custom Camshafts or using these heads with a stroker motor then you will need to select our Stage 2 heads package or higher which comes with the necessary upgrades. We use a specially designed and tested valve spring from PSI with Titanium retainers combination that outperforms the competitions valve springs. Almost every competitor of ours is new to the market in our opinion. We've been working in these HEMI engines for 8 years now and because the majority of our competitors who also sell ported heads have only been around for a couple of years at the most, they don't have our level of experience with these HEMI heads. Early on, we tested and broke several manufacturer's valve springs and since this is the weakest part of the engine, we've developed a special combination using the PSI valve spring, Manley Titanium Retainer that fits inside the stock 6.1L spring cage that was introduced by Chrysler onto these HEMI heads in order to prevent a dropped valve in the event of a valve spring failure. Our combination performs flawlessly and our use of the OEM valve spring cage makes our cylinder heads the safest on the market because a broken $12 valve spring can easily grenade your entire engine. Way too many of our competitors are unknowingly putting you at risk.
Stage 2 Heads: (Stock Hollow Stem Valves, PSI Valve Springs, Manley Titanium Retainers w/New Bronze Valve Guides) If you are installing a fairly aggressive high lift cam, such as our HHP Stage 2 or higher Custom Camshafts or using these heads with a stroker motor then you will need to select our Stage 2 heads package or higher which comes with the necessary upgrades. We use a specially designed and tested valve spring from PSI with Titanium retainers combination that outperforms the competitions valve springs. Almost every competitor of ours is new to the market in our opinion. We've been working in these HEMI engines for 8 years now and because the majority of our competitors who also sell ported heads have only been around for a couple of years at the most, they don't have our level of experience with these HEMI heads. Early on, we tested and broke several manufacturer's valve springs and since this is the weakest part of the engine, we've developed a special combination using the PSI valve spring, Manley Titanium Retainer that fits inside the stock 6.1L spring cage that was introduced by Chrysler onto these HEMI heads in order to prevent a dropped valve in the event of a valve spring failure. Our combination performs flawlessly and our use of the OEM valve spring cage makes our cylinder heads the safest on the market because a broken $12 valve spring can easily grenade your entire engine. Way too many of our competitors are unknowingly putting you at risk.
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