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#1
02-12-2024, 12:02 PM
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Old school 671 blown 400 build
Looking for help finalizing this build of a ‘70 400 with early heads and Weiand blower. A few years ago I picked up this engine with a Weiand 671 blower on Weiand WP 671 manifold and ‘59 531395 heads. It was supposedly fresh and ready to run but I saw enough mismatched bolts to warrant a tear down. There was some serious porting done on these heads with the intakes measuring 1.23 x 2.22. It is set up with oil through push rods, Spotts screw in rocker studs and aftermarket roller rockers.
Here are the short block details; ‘70 block with 4 bolt billet caps, ARP main studs, Eagle forged rods with 8740 bolts, Jahns forged +.030 pistons with 18cc dish. The heads are 87cc and with zero deck my static compression is 8.3 to 1. I had the heads flowed by DCI and a picture is attached. I’m looking for help in a cam recommendation and also blower drive speed to get as much reliable HP as I can. I would like to install it in my ‘56 Chieftain gasser at some point and not slow down. It currently run 10.40s at 126, 3600# with pump gas 461, turbo 400 and 3.70 gear Dana. Thanks, Tom
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Tom 1963 Lemans -428 +.030, SD Perf KRE heads, turbo 350, 9" Ford 3:90, 11.01@121 1956 Chieftain gasser, 461 stroked 400, SD Perf ported E-heads, turbo 400, Dana 3:70 10.40@125 |
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