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Re: 400 small block chevy
Shot in the dark here, maybe a valve seat is done due to unleaded fuels?
using unleaded fuels in an engine without hardened seats will eventually fail. Lead was a high temp lubricant used to prevent exhaust seats from receding.
I dunno for sure. Let us know what you find.
Just blame your brother for not using leaded fuel or getting hardened valve inserts installed. lol.
peace
PAuly
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97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph
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