WebNov 29, 2000 · Its in your heads, guys. TA was very adamant about changing the HEADS on my 76 block. The (67-69) 430 heads and 455 heads from 1970 were the "high compression" heads, later years increased combustion chamber size for deacreased compression. I have the old ones from the 76 block free if you want to pay shipping! WebApr 23, 2011 · Just my opinion ,i think that was a better built engine that the 425-430 buick -421-428 pontiac engine. Ihad all 3 brands and the buicks had oil pressure problems,the ponchos had timing chain problems. ... Poor head designs, weak rods, pistons, and blocks all show up pretty quick. it's pretty common to break rods and even cranks on the 455 ...
400-430-455 Headers - Standard & Stage 1 TAPerformance.com
http://www.buickperformanceclub.com/455hds.htm WebCylinder Head, Performer RPM, Aluminum, Assembled, 68cc Chamber, 215cc Intake Runner, Buick, 400, 430, 455 See More Specifications. Edelbrock Performer RPM Cylinder Heads 60049 EDL-60049. 5 out of 5 stars. Part Number: EDL-60049. Estimated Ship Date: May 1, 2024. ... Edelbrock Performer RPM Cylinder Heads. lawn concert seats
430 and 455 cylinder head interchangability? V8buick.com
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