Hardened exhaust seats for unleaded fuel compatibility
Bronze valve guides
Manufactured with aircraft quality high grade aluminum
alloy
Multi-angle seat design for improved flow at low lifts
Advanced port design for improved flow at all lifts
Advanced combustion chamber design allows superb flame
travel and burn
Additional pushrod clearance machined along outside
port walls
Can use either early or late (Vortec) intakes
Can use either perimeter bolt pattern or centerbolt
valve covers
Threaded accessory holes in ends of heads
Retains stock 23 degree angle and intake/exhaust bolt
locations
Thick deck to resist warping and allow for additional
milling if desired
Does not require offset rocker arms
These heads will work for all small blocks including 400s (no steam holes). Heads are drilled for both the earlier style intake bolt pattern (pre '87) that had all bolts going in at an angle and the newer Vortec style that has 4 on each side going straight down in.
Business Phone Number: 515-733-2890 This item is NEW Trades NOT ACCEPTED Payment options:
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KMJPerformance4 (#466054)
KMJ Performance 4 107 Industrial Park Road Story City, IA 50248 515-733-2890 Member Since: 2010-03-10
Phone Number: 515-733-2890
Member Feedback Number of Honor Payments: 0
Average Accepted Sale Price: $0.00
Average Honor Payment: $0.00