d8a bottom end

[billing5]

As stated in the title are they really any stronger or is it a myth, what makes people think they are any stronger. any info welcome cheers

[4WayDiablo]

I think its a bit of a myth. AFAIK there is no evidence

[Jake]

Same rods/pistons.

Think it's just because less D8a engines have spat rods they were just hyped up that they were better. Pretty sure there is no difference between the D8a/D8b

However IIRC the DHY has ceramic plated pistons which will have some effect.

[billing5]

Yeah that's what I thought, looking into building a reliable daily motor that can cope with some abuse without worry. With the rods are forged available off the shelf anywhere, if not any non xud forged rods come close in size?? What are the xud rod sizes (big end and wrist pin) cheers

[Jake]

Yeah that's what I thought, looking into building a reliable daily motor that can cope with some abuse without worry. With the rods are forged available off the shelf anywhere, if not any non xud forged rods come close in size?? What are the xud rod sizes (big end and wrist pin) cheers

No off the shelf forged internals, you can get them made up for around £5-600 if you think it's worth that.
Id rather just buy 5 spare engines tbh though...

Also have a search on here for Hdi rods, a lot use them nowadays.

[Dave]

No strength difference I've had both and shit both, the dhy seems to be a smoother motor maybe they balanced them better from the factory also as said they have slightly better heat resistant bangers and the head is slightly better for this too... If your block is out 100% swap the rods for some dw10 ones, slightly bigger in places.

[fan2xud]

D8A = phase 1, DHY = phase 2
D8A = D8B, D8B = 406 engine
Here in France, the question does not arise for a number of years between the DHY & D8A-D8B
The DHY with aluminum are pathetic face with D8A fonte.Pre-piston combustion chambers + rods break.
The only 2 things better on DHY is all the liquid cooling system and the head cylinder engine.
This is my opinion from experiences in many countries with the PSA XUD.