'Pop's Engine' another 440 on the dyno.
IQ52, can you get the same type/like results from '78, 452 heads? I do believe these are on my 400 B engine. How does the overall curve look?
Yes, the 452 heads should be on a '78 400. You can get the same flows from the 452 as the 346, I think. This is the first time we have ported the 346 heads and are far from finished. We've looked at the two heads and thought they looked almost the same but have not laid a burr to the 346 before. Refer to the first page of this thread for the flow from the 346. Some of the differences as we work them over will not be recorded in this thread. Cody has asked for privacy on some of our work as we test these things. I will respect my son's wishes.
These flows are from a 452 ported years ago by me (Cody is better than I am) with OOTB flows on our flowbench of an Edelbrock RPM head as a baseline. The 452 was using 11/32 guides and an Edelbrock 2.14 intake valve.
Lift...............RPM...............452
.100...............73.................92
.200..............148...............170
.300..............209...............224
.400..............254...............265
.500..............276...............287
.600..............287...............297
.700..............291...............302
