shizzl Posted September 9, 2010 Share Posted September 9, 2010 does anyone know what stock hemi 245 (valiant engine) pistons look like.. as in, are they flat tops or dished etc? i took the head off the stocky today and the pistons are flat top.. i dont have a clue what pistons they are.. im hoping theyr a high comp spec.. ive seen a pic of a forged race piston thats a flat top but i wouldnt have a clue how to tell whats what... any help would be good...otherwise ill just press on regardless.. oh also the pistons dont appear to look old, nor do the valves in it... Quote Link to comment Share on other sites More sharing options...
KKtrips Posted September 9, 2010 Share Posted September 9, 2010 may help?? http://www.hemiperformance.com.au/store ... 1&catId=13 Quote Link to comment Share on other sites More sharing options...
Dell'orto Posted September 10, 2010 Share Posted September 10, 2010 By nature of the head design, I would have thought they'd be flat, if not slightly domed. Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted September 12, 2010 Share Posted September 12, 2010 My oem 265 pistons are flat top. I'm pretty sure all the hemi 6 slugs were. They had to be to get the comp up due to the carvernous (but valve unshouding) combustion chambers. Quote Link to comment Share on other sites More sharing options...
shizzl Posted September 12, 2010 Author Share Posted September 12, 2010 cheers guys...i just wasnt sure what they looked like in standard form. i did notice the combustion chambers of the head too. i should actually measure the valves to see if its got a 265 head on it. heard you run a 265 head and deck the block to up the comp again... 265 heads have larger valves.. win Quote Link to comment Share on other sites More sharing options...
shizzl Posted September 13, 2010 Author Share Posted September 13, 2010 ok found out its got a 245 head on it.. but has been rebuilt with new valves etc at some stage.. may look at getting a 265 head and getting it decked by 30th, i think its about that much you take off...or maybe 20th.. Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted September 13, 2010 Share Posted September 13, 2010 You're better off having the 265 valves fitted to the 245 head. Thats what ball the go-fast people used to do back in the day. Quote Link to comment Share on other sites More sharing options...
shizzl Posted September 13, 2010 Author Share Posted September 13, 2010 but its alot cheaper to just plane the head, especially if its gonna get done anyway to make sure shes flat ae Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.