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Was this in something kind of one off, like a 4.10" crank and 6" rods?
No, just your standard 408 for high compression. Used the K1 4.000" Crank, K448X3 Pistons 4.030", Manley H Beam Rods 14051-8.
Heres the view with the piston installed on the bottom side of the block to see where its hitting. In the Manley piston you can also see the relief they cut in the piston is there for a reason....as the Wiseco should have.
I'd lean towards the Wiseco. They run a 1.2/1.2/3.0mm ring pack whereas the Manley's are a larger 1.5/1.5/3.0mm. Thinner rings = less friction/mo powa!
Last I heard, Mahle was going to start running 1mm rings in their pistons. You have to call when you order though to make sure you don't get old stock with the 1.5mm rings.
I looked these up. They have -4 cc flat tops for my combo with those rings. They're 4032 material. Is that a pro or a con?
Not to thread jack OP but i have a question for the pro guys. Is it possible to get a nitrous piston for a 1.115 compression height and still have it thick enough to take a 250+ shot without sacrificing the ring lands locations and so on.
Not to thread jack OP but i have a question for the pro guys. Is it possible to get a nitrous piston for a 1.115 compression height and still have it thick enough to take a 250+ shot without sacrificing the ring lands locations and so on.
Yes the 4" Stroker pistons from Wiseco have .250 top ring lands and can take much more then 250hp,its just in the tuning and getting tool steel thick wall pin
I ended up buying Mahle 930223270 Flat Top PowerPak Piston Set w/1mm, 1mm, 2mm Ring Set 416c.i. 4.070 Bore 4.000 Stroke 6.125 Rod 1.105R C/H 0.927 Pin -4cc Vol. 431g 4032 Alloy. 11.7:1 with my 65cc TEA/TFS 235's and a .040 gasket.
Now to decide on a cam and whether to go with the improved FAST 102 or wait on the MSD intake.
12-12-2014, 12:05 PM
