Do I need to get my pistons notched with X cam?
 

Im putting a x cam in my car with portedDO0E 351 heads with heavy valve springs and 1.6 roller rockers. Does anyone know if I will have to notch the pistons for this cam? Also I wanted to a run thin head gasket to boost up the compression a bit do you think this will cause any clearence issues? btw its a stock 89 Shortblock.

RE: Do I need to get my pistons notched with X cam?
 

with 1.6 roller rockers, according to several post, looks good, go for it.


https://mustangforums.com/archive/th...2101025-1.html

B303 has duration of 284/284 and lift of .480"/.480" for 3500-5400 rpm
the E303 has duration of 282/282 and lift of .498/.498 for up to 6000 rpm
the X303 has durtion of 286/286 and lift of .542/.542 big cam for modified engines
the F303 has duration of 288/288 and lift of .512/.512 for more mid range power
the Z303 has duration of 290/290 and lift of .552/.552 for big time torque and HP making
above information is from the Holcomb Motorsports,

https://mustangforums.com/m_1633735/tm.htm

http://videos.streetfire.net/search/...3e5f50473d.htm

http://www.jason.fletcher.net/tech/cams/cams3.jpg

https://mustangforums.com/m_2199911/tm.htm

http://www.jason.fletcher.net/tech/cams/cams.htm

etc

etc

etc
:eek:

RE: Do I need to get my pistons notched with X cam?
 

nice to see someone utilizing the old school 351w heads - even if they arent the best out there:)

i had em on my 302, and they are going on my 289