I am getting pumped about this motor upgrade!!! Things are finally coming together after the motor has been apart for 2 months!

For those that aren’t aware I took the 455 down to do a little head and cam upgrade. I switched from a stock set of 6X-8 heads to a fully ported set of 6X-4 heads on my .060 over 455. I also switched from the Lunati 230/230 duration @.050 cam to an Ultradyne solid with 255/260 duration @.050. Switched from a stock timing chain to an adjustable double roller. The heads should be a HUGE improvement over the old 6X heads. They will put compression at 9.8:1. With this compression the timing will have to be right so I also re-curved the HEI. Chance of hot spots should also be reduced by the polished stainless valves and completely polished combustion chambers. The heads have had 1.77 exhaust valves installed, complete bowl blend and clean up of the intake runners and windows with opening up the exhaust ports and completely polishing them to a mirror finish. Valves will be activated by HS 1.65 roller rockers which will put valve lift at .594 and .610 for intake and exhaust respectively.

The motor will hopefully be back together this weekend and I will turn my focus on the 700R4. It will be getting a Transgo Shift Reprogrammer kit, billet 1-2 servo and 3-4 servo, .500 boost valve, and a 2400 rpm performance lockup stall converter. I already have the adapter plate to bolt the trans to the block and am replacing a TH400 so the driveshaft length and cross member will work fine…..just need to switch yokes on the front of the DS.

Once all is in place the exhaust will be replaced with a 3 inch mandrel X-pipe system all the way out the back with Goerhlick Xlerator mufflers. This thing will be NASTY!!! Due to funds the new ceramic Hedman headers will have to wait a few months, but will be switched at some point in the next year.