Thought to share my AAN build here.
At first, idea was to change H profile rods to stock block.
This was the point when it got out of hand.
I got myself a AAN block + crank and 3B head.


I knew the block had to be bored to 0,5mm oversize, so i bought JE pistons with heavy duty wrist pins.
Also i got H-profile rods, with arp2000 bolts


Before the block was going to other machine shop for oversize bore, my friend machined water jackets.
Also he took few kg:s off from the flywheel



After these, a machine shop did the 81,5mm bore and honing, line honing for new ARP main bearing studs, balanced whole engine etc etc.
Also they modify 3B head, so i can install a cam position sensor to it.
New hydraulic lifters and valve guides will be installed.
I was thinking of buying titanium retainers and harder springs, but those have to wait for next engine evolution.
So, i got block back from machine shop and cleaned all the surface rust and other crap off it.


Meanwhile head is under work, i got pistons coated with Techline CBX and DFL-1.

Muffins in the oven

Measured some clearances with plastigauge and micrometer.


Crank sits well, ARP studs in place.

I am using hardened RS2 sputter main and rod bearings from kolbenschmidt.
Soon we are going to start building the engine, i have to get more parts, like ARP head studs and so on, but i´ll get them ASAP.
At first, idea was to change H profile rods to stock block.
This was the point when it got out of hand.
I got myself a AAN block + crank and 3B head.
I knew the block had to be bored to 0,5mm oversize, so i bought JE pistons with heavy duty wrist pins.
Also i got H-profile rods, with arp2000 bolts
Before the block was going to other machine shop for oversize bore, my friend machined water jackets.
Also he took few kg:s off from the flywheel



After these, a machine shop did the 81,5mm bore and honing, line honing for new ARP main bearing studs, balanced whole engine etc etc.
Also they modify 3B head, so i can install a cam position sensor to it.
New hydraulic lifters and valve guides will be installed.
I was thinking of buying titanium retainers and harder springs, but those have to wait for next engine evolution.
So, i got block back from machine shop and cleaned all the surface rust and other crap off it.


Meanwhile head is under work, i got pistons coated with Techline CBX and DFL-1.

Muffins in the oven


Measured some clearances with plastigauge and micrometer.


Crank sits well, ARP studs in place.

I am using hardened RS2 sputter main and rod bearings from kolbenschmidt.
Soon we are going to start building the engine, i have to get more parts, like ARP head studs and so on, but i´ll get them ASAP.
!



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