Re: Horsepower difference ?
Quote:
Originally Posted by Hib Halverson
>Mild port/polish on intake and exhaust ports.
>better blending of the ports just above the valve seats
>Three-angle valve seats
>"Sleeve spacer" between the head and injector housings to improve alignment
>Revised cam timing but cam profiles remained the same
>Revised calibration
>New exhaust manifolds...which actually cost 5-hp but went to production to solve a problem with the engine ingesting debris if the cat converter substrate failed at high rpm.
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Always glad to have your wisdom around, Hib. I had forgotten all the details and especially about the cat debris ingesting problem. --Bob
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2016 Long Beach Red Z06 #10281 "POPS Z"
1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts
--Sold but still running strong
1993 Quasar Blue #161 "HIL KING"
--Sold but still running strong, now with more than 120,000 miles
1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd
--Sold a long time ago
ZR-1 Net Registry Founding Member #95
NCM Lifetime Member
Favorite Quote--Attributed to Mickey Thompson:
"Too Much Horsepower is Almost Enough"
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