Hey guys,
I ran a couple of storker combinations through the calculator and came up with some interesting combinations to build.
342” STROKER (304 block & 390 crank)
Offset grind the 390 crank for a 2.10” Chevy rod journal, which allows a 3.782” stroke
Run off the shelf Chevy 5.7” H-beam rod (I Noticed that SBC rods are narrower than 390’s, so a Chevy H-beam 6-cylinder rod could be used, it’s slightly wider than 390 rod width and has a 2.0” journal).
Off the shelf 0.060” over (stock is 3.736”) Keith Black 305 Chevy piston (1.56” pin height & 5.5 CC valve reliefs).
With my current deck height (.010” milled), I get a .002” deck clearance (would be 0.012” on stock 70+ block).
With my current 62cc 304 heads (ported and polished … SBC valves), it comes to 9.94:1 compression.
It can also run their 16 cc dished 305 piston, to get 9.6:1 compression.
435” STROKER (360 block & 390 crank)
Offset grind the 390 crank for a 2.00” Chevy Rod Journal, to a 4.07” stroke.
Run off the shelf KB Chevy 400 pistons at STD bore 4.125” (1.433” pin height & 22 cc D-dish).
Run off the shelf 5.7” H-beam rods for Chevy 6-cylinder (wide big end rod)
Comes out to 9.75:1 compression and 0.030” deck clearance.
It can run an 18cc D-dish piston to achieve 10.1:1 compression
So, what do you think about these combinations?
Sincerely,
GregTaylor
Oxford, MI
1989 Grand Wagoneer : Water/Hydrogen Injection 360-V8. 4.5" lift 31" BFG A/T's. Killer32 front bumper