I have been building a 470ci per the formula Jim Weise and Mike Phillips came up with. It has a 3.95 in stroke with Eagle rods and this one has a halo girdle. I had to cut a window in the oil pan and weld in a piece with more clearance at the front main to clear the front studs and nuts. I spent hours relieving the girdle on the sides to clear the pan. There is no place to bolt the stock windage tray to, but my pan already had a sheet metal windage tray welded in above the sump. The '70 GS is a pro-touring car that I like to run at the road race tracks and have fun on the street. I finally bolted the pan on, installed the bypass oil line and rear galley plug, filled it with Amsoil break-in oil and spun the pump to check for leaks. I hoisted it up and put it in the car and bolted up the trans housing but while turning the flywheel to install the three torque converter bolts the crank won't make a complete revolution. When I started this project no one told me how much crap I would experience with the stroker crank and the halo girdle. I guess I just need to buy an aluminum pan. Any suggestions? Anyone had a similar experience?
When I ran a halo I got longer main studs so I could torque the caps then mounted the halo on top of the nuts. I had minimal halo trimming and had dropped the front sump on the pan so everything cleared.
Be sure to brace the pickuptube if running one it will crack if its allowed to expand contract, vibrate etc
Well then that's another problem. This halo girdle came with no instructions and the support arm on the oil pickup tube was in the way so I had to cut it off.
Paul, Just an FYI for those watching.. TA's 1511C reproduction oil pan, along with a 1/8 thick oil pan gasket, clears the front 4 rods on the 470.. But not the Halo.. I can imagine that nitemare. JW
I had the same issue.. the front of my pan hit everywhere so I had the front lowered,as for the stock windage tray I drilled and tapped the halo and mounted it to the halo itself ...worked good had to notch the shelf I previously had in the pan.if this helps also I have big aluminum rods but stock stroke so im sure mine were as tight or tighter as I couldn't even turn the engine over with the pan on at first
You did a lot of nice work to that pan. The people that sold me the girdle said all I needed to do was some minor massaging.
Jim, have you thought of going with a longer aftermarket rod on the 470 combo to bring up the wraist pin and still use a chevy big block rod? a 7.1 c to c works if you raise the wraist pin.
