TRW 2355 6-Pack Pistons and MP 590 Cam Valve Clearance? - Moparts Forums

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TRW 2355 6-Pack Pistons and MP 590 Cam Valve Clearance? #715446 06/03/10 08:56 PM 06/03/10 08:56 PM
Joined: May 2007 Posts: 1,443 Maryland D Dads426 OP pro stock
Dads426 OP pro stock D Joined: May 2007 Posts: 1,443 Maryland	I have a set of TRW 2355 pistons that we are going to use in a spare 440 motor (these are the older style with the 4 valve reliefs). Does anyone know if a MP 590 cam will have enough piston to valve clearance with these pistons? (haven't bought the cam yet) The valve reliefs are not that deep. Since the pins are aleady pressed on the rods, fly cutting deeper valve reliefs will be a pain. The heads are ported Max Wedge so they should flow enough for that cam. Thanks! 2012 422 Allstars NSS Champion 2013 422 Allstars NSS Champion 2014 422 Allstars NSS Champion

Re: TRW 2355 6-Pack Pistons and MP 590 Cam Valve Clearance? [Re: Dads426] #715447 06/03/10 09:06 PM 06/03/10 09:06 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: I have a set of TRW 2355 pistons that we are going to use in a spare 440 motor (these are the older style with the 4 valve reliefs). Does anyone know if a MP 590 cam will have enough piston to valve clearance with these pistons? (haven't bought the cam yet) The valve reliefs are not that deep. Since the pins are aleady pressed on the rods, fly cutting deeper valve reliefs will be a pain. The heads are ported Max Wedge so they should flow enough for that cam. Thanks! Yes plenty of clearance, degree the cam in the motor and they work well togeather. I built a motor with the same pistons with a little bigger cam. There are better cams though.

Re: TRW 2355 6-Pack Pistons and MP 590 Cam Valve Clearance? [Re: Challenger 1] #715448 06/03/10 09:42 PM 06/03/10 09:42 PM
Joined: May 2007 Posts: 1,443 Maryland D Dads426 OP pro stock
Dads426 OP pro stock D Joined: May 2007 Posts: 1,443 Maryland	Quote: There are better cams though. Thanks for the reply. I'm open to suggestions, but other cams that I was looking at don't have ship dates until the end of this month. I want to try and get this motor together in the next two weeks. 2012 422 Allstars NSS Champion 2013 422 Allstars NSS Champion 2014 422 Allstars NSS Champion

Re: TRW 2355 6-Pack Pistons and MP 590 Cam Valve Clearance? [Re: Dads426] #715449 06/03/10 10:48 PM 06/03/10 10:48 PM
Joined: Aug 2003 Posts: 43,205 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,205 Bend,OR USA	Piston deck height, heads CC, head gasket thickness, cam lobe seperation angle, installed cam intake lobe center and valve opening at 10 degree BTDC to 12 to 15 degrees ATDC will determine how much piston to valve clearances you will have I have read on here that there are two different grinds, versions of the Mopar "590" solid lifter cam The lobe seperation angle being the major differences, hopefully someone that know more about that cam will chime one way or the otyer on that Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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