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Question about 540ci engine #1664918 08/28/14 09:08 PM 08/28/14 09:08 PM
Joined: Dec 2003 Posts: 542 Louisville, Ky. Mojoluv OP mopar
Mojoluv OP mopar Joined: Dec 2003 Posts: 542 Louisville, Ky.	Do you guys think that a good pair of Indy SR heads will work ok on a 540ci engine? The engine is an 11:1 pump gas motor and the heads are ported fully to Max Wedge size. Flow 360 at .650. I have just heard some say not to go above 500ci with the SR heads. Thanks for the feedback....

Re: Question about 540ci engine [Re: Mojoluv] #1664919 08/28/14 10:04 PM 08/28/14 10:04 PM
Joined: Jan 2003 Posts: 9,996 Frostbitefalls MN (Rocky&Bullw... gregsdart master
gregsdart master Joined: Jan 2003 Posts: 9,996 Frostbitefalls MN (Rocky&Bullw...	They will work just fine. The power will come in pretty low, with lots of torque, peaking maybe 4700. Peak hp probably by 6600? SR heads are capable of 800 hp with full porting and the right build. 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

Re: Question about 540ci engine [Re: gregsdart] #1664920 08/29/14 12:03 AM 08/29/14 12:03 AM
Joined: Nov 2003 Posts: 10,384 Upstate NY Bigcube I Live Here
Bigcube I Live Here Joined: Nov 2003 Posts: 10,384 Upstate NY	I believe there is a member here with either SR's or EZ's on a 572. Maybe Ron (firefighter) can chime in. Jim

Re: Question about 540ci engine [Re: Bigcube] #1664921 08/29/14 03:35 AM 08/29/14 03:35 AM
Joined: Dec 2003 Posts: 542 Louisville, Ky. Mojoluv OP mopar
Mojoluv OP mopar Joined: Dec 2003 Posts: 542 Louisville, Ky.	Thanks guys...appreciate it. I figured they would be fine on a pump gas engine and still make good power.

Re: Question about 540ci engine [Re: Mojoluv] #1664922 08/29/14 01:27 PM 08/29/14 01:27 PM
Joined: Jan 2003 Posts: 31,021 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,021 Oregon	That will work fine on a pump gas motor. Even a race motor works fine with SR heads up to the 900 hp range.

Re: Question about 540ci engine [Re: AndyF] #1664923 08/29/14 02:07 PM 08/29/14 02:07 PM
Joined: Sep 2003 Posts: 2,008 Sweet Home Alabama M MRMOPAR622 top fuel
MRMOPAR622 top fuel M Joined: Sep 2003 Posts: 2,008 Sweet Home Alabama	With the right cam it should be a Torque Monster.Remember torque is even more important with a heavier street car than a lighter weight race car to get it moving. "To Be The Man'You Have Got To Beat The Man" "T/D and Pro-Bracket Racer"

Re: Question about 540ci engine [Re: MRMOPAR622] #1664924 08/29/14 03:43 PM 08/29/14 03:43 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	They will work fine,and you can even upgrade to a 2.250 intake valve. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: Question about 540ci engine [Re: Bigcube] #1664925 08/30/14 02:39 PM 08/30/14 02:39 PM
Joined: Feb 2003 Posts: 1,646 Ontario,Canada F firefighter3931 top fuel
firefighter3931 top fuel F Joined: Feb 2003 Posts: 1,646 Ontario,Canada	Quote: I believe there is a member here with either SR's or EZ's on a 572. Maybe Ron (firefighter) can chime in. Mine has a set of the 295 cnc EZ's @ 10.7:1 in a 572ci street/strip build. Makes Killer torque (720 ftlbs)and descent horsepower (720HP) that is all in by 6000 rpm. Heads flow almost identical to yours. On a 540 the tq peak and HP peak would be higher but not by a huge amount. I'm running a .660 lift solid roller 266/272@.050 on a 110 LSA. Ron

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