Need J37A1 aftermarket valve springs
 

Boosting J37A1 to 20psi. Worried about valve float, can't find aftermarket springs. Any ideas? Add a shim? Thanks

Supertech 72lb "ValveSpring/Retainer/Seat" Kit part # SPRK-H1003S/J32 works on the J37A1 PROVIDED THAT YOU PURCHASE AND INSTALL A QUANTITY OF 48 J32A2 VALVE RETAINER COTTERS (Acura part # 14781-PJ7-003).

I've used this on many j-series motors over the past 7 years which share this rocker arm and spring geometry.

Have fun!

Good to know, thanks! Just looked up the cost... Wow. Was wondering how I could throw more money at this thing. Going to have a $4k engine with $10k into it I swear!

Ran with your info and everything is working great. Cotters look incredibly similar but apparently angle is slightly different where retainer contacts. That's what someone else told me anyway. 510whp was achieved no problem :)