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Pistons

james robert
honda305.com Member
Posts: 52
Joined: Thu Jun 09, 2016 9:06 pm
Location: Fort Smith Arkansas

Pistons

Post by james robert » Sun Jul 03, 2016 8:45 pm

I've been eyeballing this package deal from Classic Honda restoration. They say that the pistons are forged and have less drag then the factory pistons. I just thought i would get some input from the pros before i pull the trigger.

Thank you.

http://www.classichondarestoration.com/ ... d_221.html

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Re: Pistons

Post by LOUD MOUSE » Sun Jul 03, 2016 9:05 pm

What they don't say is the Front and Rear Skirts are not as long as the HONDA pistons.
They may wear sooner than the stock HONDA Piston/Skirts. ...........lm

james robert wrote:I've been eyeballing this package deal from Classic Honda restoration. They say that the pistons are forged and have less drag then the factory pistons. I just thought i would get some input from the pros before i pull the trigger.

Thank you.

http://www.classichondarestoration.com/ ... d_221.html

james robert
honda305.com Member
Posts: 52
Joined: Thu Jun 09, 2016 9:06 pm
Location: Fort Smith Arkansas

Re: Pistons

Post by james robert » Sun Jul 03, 2016 9:13 pm

LOUD MOUSE wrote:What they don't say is the Front and Rear Skirts are not as long as the HONDA pistons.
They may wear sooner than the stock HONDA Piston/Skirts. ...........lm

james robert wrote:I've been eyeballing this package deal from Classic Honda restoration. They say that the pistons are forged and have less drag then the factory pistons. I just thought i would get some input from the pros before i pull the trigger.

Thank you.

http://www.classichondarestoration.com/ ... d_221.html
Thanks Loud Mouse, I'm in no hurry I guess I will keep looking.

Tim Miller
honda305.com Member
Posts: 242
Joined: Mon Jan 30, 2012 6:22 pm
Location: Pflugerville, TX

Re: Pistons

Post by Tim Miller » Mon Jul 04, 2016 1:09 pm

James,

I have machined and installed several sets of Wiseco pistons from Classic and they work great. The shirt is 5.82mm shorter but that hasn't given me any problems. I will always take a Forged over a Cast piston any day.

Tim
james robert wrote:I've been eyeballing this package deal from Classic Honda restoration. They say that the pistons are forged and have less drag then the factory pistons. I just thought i would get some input from the pros before i pull the trigger.

Thank you.

http://www.classichondarestoration.com/ ... d_221.html

james robert
honda305.com Member
Posts: 52
Joined: Thu Jun 09, 2016 9:06 pm
Location: Fort Smith Arkansas

Post by james robert » Mon Jul 04, 2016 3:34 pm

Tim, Thank you for the input. I did have one reservation about using forged pistons, I have read somewhere that forged pistons are more dense then cast pistons and take longer to warm up, And they have a tendency to knock in a cold engine. This wouldn't bother me though as i would just allow the pistons to reach the right temperature.

Tim Miller
honda305.com Member
Posts: 242
Joined: Mon Jan 30, 2012 6:22 pm
Location: Pflugerville, TX

Post by Tim Miller » Mon Jul 04, 2016 5:06 pm

The alloy use in this particular forging is 4032 (high silicon) and has a lower growth rate than some forging. Actually, I set the skirt-to-cylinder clearance for both Honda ART cast and the 4032 at .002". I have heard no piston slap cold or hot.

Tim
james robert wrote:Tim, Thank you for the input. I did have one reservation about using forged pistons, I have read somewhere that forged pistons are more dense then cast pistons and take longer to warm up, And they have a tendency to knock in a cold engine. This wouldn't bother me though as i would just allow the pistons to reach the right temperature.

james robert
honda305.com Member
Posts: 52
Joined: Thu Jun 09, 2016 9:06 pm
Location: Fort Smith Arkansas

Post by james robert » Mon Jul 04, 2016 5:34 pm

Tim, Sounds good I might get the set soon. I will need the machine work done by someone who knows their stuff. If nothing else I want the engine to be right as i will probably make a few long trips. So i plan to have the crank cleaned and inspected and the cylinders bored and piston and rings fitted. I think i can do the rest my self. Let me know what you charge for your services.

Thank you.


Tim Miller wrote:The alloy use in this particular forging is 4032 (high silicon) and has a lower growth rate than some forging. Actually, I set the skirt-to-cylinder clearance for both Honda ART cast and the 4032 at .002". I have heard no piston slap cold or hot.

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