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454 max lift?????????

21K views 10 replies 6 participants last post by  redneck_9018 
#1 ·
ok I am wondering, what is the max valve lift for a 454 bbc stock head?
 
#3 ·
Would depend on a number of things...such as application or use of engine, compression ratio (piston size), chamber volume, etc. Talking to a cam grinder is always best. Even if you were to buy a complete kit from them, their still going to tell you to measure everything to be safe. It's best not to guess. For general knowledge you could also look up the GM specs. for perform big blocks and get an ideal of the combinations the factory used
 
#4 ·
This would be interesting to know for me also. I have 781 heads (November 1977 casting date). Stock everything but I am sure with whatever cam I decide to get that I would lifters springs with it also. I dont understand all this rocker arm ratio and self aligning all that tho stuff tho. Can someone explain that?
 
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