RH4 To Narley Port Conversion Tubes

32mm intake port floors are finally here! This has been a long road. Feels good to finally get here. Reach out to Jim Schmidt to get them.

https://jsmotorsport.com/product/ra...and-performance-for-850-rh4-and-combat-heads/

This is a drop in that seals with a teflon gasket.

RH4 To Narley Port Conversion Tubes


No sealant at the gasket, check visually and with fingers when installing. Go slow when installing until the bolts are in to make sure the gaskets stay on the ring. A small dab of silicone under the tongue is optional.

Lastly, I have a 30mm protype in my hands as well and I will be sharing some info on that as soon as I see the fitment on other test heads.
 
I have recently tapped into place the 2 J.S. reduction sleeves , 32 to 30 m.m.
I'll wait on the 30 m.m. offering , to fit over the sleeves already in place .
 
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