265 Hi comp pistons

[47 dodge 1.5 ton]

Who makes the best piston set for approx 8.5-9.5 compression ratio? Or is there another option that is used? Thank you, Kevin

[DJ194950]

Plan to run premium fuel full time?

 

If you really want that higher comp. ratio for the  pistons you will need to have discussions with several custom piston manufacturers. May need to have shorter overall height or/and move the piston pin location  and ring type to live with the long stroke.

 

Going to need a engineer involved, but that is only my opinion.

 

Make a call of 2 or 3.  Several co.'s do this sort of thing but my memory just went blank ( as happens) to some names. ?

 

DJ

[plymjim]

Easier to just shave the head a tad?

Also, a lot easier to revert if you ever 

decide to.

[55 Fargo]

Stop guessing and most on here will not have a hot clue on this topic.

Contact Tim Kingsbury and/orTony Smith for experienced knowledge in this area. Others like Marty Bose may have used custom Venolia Pistons in their 230s.

If you can afford the expense on custom pistons great, if you don't want to spend the big money shave the head to increase compression or buy an EDGY head.

In most cases custom pistons are used as they are forged, 3 ring and better quality than the cast aluminum 4 ring stock type.

In most cases on here stock pistons, a hotter cam, higher comp head,  multi carb intakes and headers or split exhaust are the ticket

Good Luck

 

Edited October 24, 2020 by 55 Fargo

[47 dodge 1.5 ton]

55 Fargo— Do you have their contact that can be shared on here? I am most likely having block cut at a min of .060” oversized, I have been looking for a head and have not came up with one at this time. If new forged o/s pistons are under a grand, I may go that direction and on shave the head/block minimal at this time unless needed later. Thanks for the replies. Kevin

[55 Fargo]

1 hour ago, 47 dodge 1.5 ton said:

55 Fargo— Do you have their contact that can be shared on here? I am most likely having block cut at a min of .060” oversized, I have been looking for a head and have not came up with one at this time. If new forged o/s pistons are under a grand, I may go that direction and on shave the head/block minimal at this time unless needed later. Thanks for the replies. Kevin

PM both as they use their names on here. Or message Tony Smith or Tim on FB.

Look for a 56 or so 250/265 truck head supposedly the best. 

Some suggest using a Canadian 218 long block head too.

The Industrial head may be the worse on chamber and compression.

Just PM either both are great guys.

[Charlie Stephenson]

try this.  https://www.aussiespeedshop.com/product-category/hemi-chrysler-6-cylinder/  Not an endorsement.  Charlie Stephenson

[Charlie Stephenson]

deep pockets (right hand drive)  https://www.jalopyjournal.com/forum/threads/dodge-265-hemi-straight-6.184740/   .  Charlie Stephenson

[Charlie Stephenson]

This is the one I found a few years ago --- very interesting.  https://www.google.com/search?gs_ssp=eJwFwbsNgCAUAMDYGieworGGB_IdwS0AeUoialATxveuH-hGgRcbQVTJOjexpoJlGEVCiNqAlo41PqugDV9RI4K1uIx7KpncqeJViz9jIv573uqP7H-eRBjp&q=hemi+performance+australia&rlz=1C1CHWA_enUS616US616&oq=hemi+performance+Austrialia&aqs=chrome.1.69i57j46i13i175i199j0i8i13i30.24070j0j7&sourceid=chrome&ie=UTF-8        .   Charlie Stephenson  spoke with them on the phone $$$$$  but never bought any thing.  Wild stuff out there.  I think 1-336-352-4866 hot hemi heads can speak of them.  Hot Hemi Heads is a great source for V8 parts imho.

[Charlie Stephenson]

This is where I done business before Great, reliable. USA based, old family business. https://egge.com/info/catalog/  Charlie Stephenson

 

 

This is good reading  https://www.google.com/search?gs_ssp=eJwFwbsNgCAUAMDYGieworGGB_IdwS0AeUoialATxveuH-hGgRcbQVTJOjexpoJlGEVCiNqAlo41PqugDV9RI4K1uIx7KpncqeJViz9jIv573uqP7H-eRBjp&q=hemi+performance+australia&rlz=1C1CHWA_enUS616US616&oq=hemi+performance+Austrialia&aqs=chrome.1.69i57j46i13i175i199j0i8i13i30.24070j0j7&sourceid=chrome&ie=UTF-8        Charlie Stephenson

[55 Fargo]

22 hours ago, 47 dodge 1.5 ton said:

55 Fargo— Do you have their contact that can be shared on here? I am most likely having block cut at a min of .060” oversized, I have been looking for a head and have not came up with one at this time. If new forged o/s pistons are under a grand, I may go that direction and on shave the head/block minimal at this time unless needed later. Thanks for the replies. Kevin

Having looked at your project. I would speculate gping to a high revving performance 265 is not perhaps the goal.

Even Vintage Power Wagon stock pistons would be just fine. 

A cam grind for big lower RPM torque might be considered. Not a redline of 5500 rpm that idles at 700 to 1000 rpm.

The increasing of compression, via head machining or an aftermarket head your choice.

Your factory dual setup with matching big truck carbs will be plenty.

High speed or racing is not the goal I take it with a 1.5 ton truck?