I have a Mopar Performance camshaft part # P4286681 with the following data:
Duration 276-276 @50 214-214
Valve lift .490 - .490 (1,5 rocker ratio) .523- .523 (1,6 rocker ratio)
Intake opens 34º - Intake close 62º - Exh. opens 66º - Exh. Close 30º
Overlap 64º
Centerline 106 (instaled 104º)

Mopar performance recomerecommendse of this spring / spring retainer / Valve seals with the specified camshaft:
Spring retainer # P4452033 (Crome chromeretainers)
Race Valve Seals # P3690963
1st. Choice: Spring part # P4120249 (Instalation height 1,67" / 1,70" - Single Damper - O.Diameter 1,50 - Wire diameter 2,06 - Lift ramge range/ .500)
Or
2nd. Choice: Spring part # P3412068 (Instalation height 1,68" / 1,70" - Dual Damper - O.Diameter 1,46 - Wire diameter 1,91 - Lift ramge range/ .620)


I don't have the pressure for each spring, but:
- Is anyone running with any of this set ups?
- Has anyone replaced the MP spring for other brand?
- For the lift range point of view I'd rather go with the P3412068 springs, since I want to go to 1,6 rockers, but I'm under the impression that this springs as HARD ...

Any imput on this will be much appreciated!!!

_________________
Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

What is you target "redline" or shift point RPM?
DD

Doc,
My shiftpoint will be at 6000rpm and the redline around 6500 rpm with a 0,40 overbore, very long rod 7,3" = 185,2mm, fully race balanced.

That is what I'm aiming to, this rods in my country are very used for the Slant Six in modified circuits racing with success, so I know the shiftpoint is realistic.

_________________
Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

You may want to take a look at the links from this post.

Those 7.3" rods sound interesting! Are they a custom rod, or from another engine?

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

Not custom, this are from another Inline 6 engine from other brand, the car's name is Torino manufactured by Industrias Kaiser Argentina and later by Renault Argentina.

Once I have all my good stuff together and before starting I'll do a post with all the information for my new rebuild, including this rods so I can get all your comments on it!!!

_________________
Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

Did you have to modify the rods at all to fit the slant crank journals or the piston pin diameter ? did you have to notch the block at all, seeing is believing, so post up some pics man !!!!

-Mike

_________________
I am the Guardian, I hate helos, everything leaks.......

OK, here are some pictures of a side-by-side Ika vs. Dodge piston+rod assembly from Martin Chymale's engine.
This are the best pictures I could find foyou to check the difference. I'll get all the meassures from the Ika rod as long as all the messures of the piston latter.

[URL=http://img18.imagevenue.com/img.php?image=48665_Motor_Coronado_014_122_155lo.jpg][IMG]http://img18.imagevenue.com/loc155/th_48665_Motor_Coronado_014_122_155lo.jpg[/IMG][/URL][URL=http://img134.imagevenue.com/img.php?image=48667_motorcoronado147zk3_122_17lo.jpg][IMG]http://img134.imagevenue.com/loc17/th_48667_motorcoronado147zk3_122_17lo.jpg[/IMG][/URL][URL=http://img243.imagevenue.com/img.php?image=48668_motorcoronado148nk2_122_81lo.jpg][IMG]http://img243.imagevenue.com/loc81/th_48668_motorcoronado148nk2_122_81lo.jpg[/IMG][/URL][URL=http://img105.imagevenue.com/img.php?image=48672_motorcoronado150xs0_122_549lo.jpg][IMG]http://img105.imagevenue.com/loc549/th_48672_motorcoronado150xs0_122_549lo.jpg[/IMG][/URL]
[URL=http://img261.imagevenue.com/img.php?image=48678_motorcoronado156hp8_122_29lo.jpg][IMG]http://img261.imagevenue.com/loc29/th_48678_motorcoronado156hp8_122_29lo.jpg[/IMG][/URL][URL=http://img186.imagevenue.com/img.php?image=48680_Motor_Coronado_012_122_43lo.jpg][IMG]http://img186.imagevenue.com/loc43/th_48680_Motor_Coronado_012_122_43lo.jpg[/IMG][/URL][URL=http://img190.imagevenue.com/img.php?image=48682_Motor_Coronado_013_122_657lo.jpg][IMG]http://img190.imagevenue.com/loc657/th_48682_Motor_Coronado_013_122_657lo.jpg[/IMG][/URL]

[url=http://img18.imagevenue.com/img.php?image=48665_Motor_Coronado_014_122_155lo.jpg][img=http://img18.imagevenue.com/loc155/th_48665_Motor_Coronado_014_122_155lo.jpg][/url][url=http://img134.imagevenue.com/img.php?image=48667_motorcoronado147zk3_122_17lo.jpg][img=http://img134.imagevenue.com/loc17/th_48667_motorcoronado147zk3_122_17lo.jpg][/url][url=http://img243.imagevenue.com/img.php?image=48668_motorcoronado148nk2_122_81lo.jpg][img=http://img243.imagevenue.com/loc81/th_48668_motorcoronado148nk2_122_81lo.jpg][/url][url=http://img105.imagevenue.com/img.php?image=48672_motorcoronado150xs0_122_549lo.jpg][img=http://img105.imagevenue.com/loc549/th_48672_motorcoronado150xs0_122_549lo.jpg][/url]
[url=http://img261.imagevenue.com/img.php?image=48678_motorcoronado156hp8_122_29lo.jpg][img=http://img261.imagevenue.com/loc29/th_48678_motorcoronado156hp8_122_29lo.jpg][/url][url=http://img186.imagevenue.com/img.php?image=48680_Motor_Coronado_012_122_43lo.jpg][img=http://img186.imagevenue.com/loc43/th_48680_Motor_Coronado_012_122_43lo.jpg][/url][url=http://img190.imagevenue.com/img.php?image=48682_Motor_Coronado_013_122_657lo.jpg][img=http://img190.imagevenue.com/loc657/th_48682_Motor_Coronado_013_122_657lo.jpg][/url]

The pictures aren't that good, but they do the job!

_________________
Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

I don't know what I'm doing wrong about the pictures ... but if you click the link bellow you'll see the firs picture, then click on NEXT.

http://img18.imagevenue.com/img.php?ima ... _155lo.jpg

Maybe someone can fix the links above for the thumbnails...

_________________
Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

You could use something like Photobucket that doesn't pop up adult web sites. Photobucket even gives you the image code to cut and paste.

_________________
Joshua

OK. Now with photobucket.

http://s894.photobucket.com/albums/ac14 ... _510lo.jpg
http://s894.photobucket.com/albums/ac14 ... _449lo.jpg
http://s894.photobucket.com/albums/ac14 ... 147zk3.jpg
http://s894.photobucket.com/albums/ac14 ... 148nk2.jpg
http://s894.photobucket.com/albums/ac14 ... 150xs0.jpg
http://s894.photobucket.com/albums/ac14 ... 156hp8.jpg

Thanks Joshua!

Maybe someone can delet my previous post nos that the pics are OK

_________________
Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)