Why does my engine top out at about 5100rpms? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gabet40 · 09-09-2002, 02:25 PM

ive got and intake similar to the edelbrock airgap, then some spacers and a K&N on top of the that. ive got a Crane Powermax cam that has a valve float of 6500, but stock heads.
so i was thinking of throwing some roller rockers on and maybe thatll solve the problem, but the Crane Tech guy said that he doesnt think thats the problem. he says i might have spring bind or something else wrong with the heads. when i installed the cam, i torqued the rockers 3/4 of a turn after the rod lost play. does that sound right?
should i take it in to get diagnosted or just disregard what tech man said and look into some roller rockers?

09-09-2002, 02:25 PM	#1
gabet40 Registered User Join Date: Dec 1999 Location: Modesto, CA Posts: 565	Why does my engine top out at about 5100rpms? ive got and intake similar to the edelbrock airgap, then some spacers and a K&N on top of the that. ive got a Crane Powermax cam that has a valve float of 6500, but stock heads. so i was thinking of throwing some roller rockers on and maybe thatll solve the problem, but the Crane Tech guy said that he doesnt think thats the problem. he says i might have spring bind or something else wrong with the heads. when i installed the cam, i torqued the rockers 3/4 of a turn after the rod lost play. does that sound right? should i take it in to get diagnosted or just disregard what tech man said and look into some roller rockers? __________________ Current owner of 2016 2500 Silverado Midnight Edition. Former owner of: 69 1/2 ton, change from long/fleet to short/fleet, shaved door handles, shaved tailgate, 4/6 drop, power windows, 700r4 72 blazer, 350 with Holley Commander 950 DFI, crane energizer cam, 350 tranny, dual sanderson blockhuggers/magnaflow exhaust



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