Anyone have a link or a part number for arp main studs or fullblown main studs if they make them for an f20c1? My machine shop couldn't find a part number or anything and I am completely building the motor and would rather not put the stock bolts back in. Thanks in advance

 

no idea who A1 is?

 

According to the Arp catalog they do not make them for our application only B16,Gsr,h22 and come cbr motorcycles. I dont know about fullblown. i would just re use them, I did with no issue. just make sure they torqued properly in the right sequence. Or buy new OE ones

 

I already ordered fbm head studs so the mains are all that concern me. I have seen arp main studs before but I'm guessing they are a different make and model that have the same thread pitch and length. Kinda how back in the day to use arp head studs in twin cam zc you had to order srt4 head studs and they worked lol

 

also I don't want to skimp on not buying main studs because of the power goal of the motor is pretty high up there

 

Can't your machine shop do the same for the mains? Measure the OEM's and see if another model matches up.

 

Keep in mind that due to the increased compression from aftermarket studs, the main bore may need to be rebored. Bearing selection should be done by measuring the shaft and housing bore after to verify oil clearance.

 

Already said where they're available

 

main studs arent really needed on these things.. the stock bolts are big and the way the block is made you dont much have to worry about the main caps moving around like we did in the older motors.

I always just use new honda bolts. There arent very many machine shops who like to line hone these blocks. aluminum on the top, steel on the bottom makes the cutters do funny things.

 

my machine shop here has line bored blocks for me before but he doesn't like to because it is a PITA especially when there are 2 different materials, I found a company that has the main studs and I ordered them yesterday.

thanks for the help everyone