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Pics - 408 RWHP 99 NA Cobra
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<blockquote data-quote="99svtvert" data-source="post: 4208207" data-attributes="member: 22962"><p>That's hard to answer. I beleive 10.5 - 10.6:1. Im orginally through it was lower (10.2) but the block was ground down at bit more that I wanted due to a gouge. That raises the cr. Pistons are Diamond domed cut back for valves. Rods are manley H-Beam. I spent lots of time on the align hone and on bore hone. I used the best studs and main bearings money could buy. New billet oil gears in a new HV oil pump and a new billet trigger wheel, new chains and guides also. Also, a steel tensioner (not the standard aluminum stock tensioner).</p><p></p><p>It sounds higher compression, definitely, now that I examine it more closely. The cams are awesome too with .474 lift and decent duration and only 109 degree LSA. I went to pickup some RX at the Walgreens driveup window today, which has a brick wall next to it. That is a great way to hear your cams; idling about 2 feet from a brick wall. WOW, what concussion. It never did that stock. Two guys asked me if they were full race cams and two women told me I needed a tune up.</p><p></p><p>Later.</p></blockquote><p></p>
[QUOTE="99svtvert, post: 4208207, member: 22962"] That's hard to answer. I beleive 10.5 - 10.6:1. Im orginally through it was lower (10.2) but the block was ground down at bit more that I wanted due to a gouge. That raises the cr. Pistons are Diamond domed cut back for valves. Rods are manley H-Beam. I spent lots of time on the align hone and on bore hone. I used the best studs and main bearings money could buy. New billet oil gears in a new HV oil pump and a new billet trigger wheel, new chains and guides also. Also, a steel tensioner (not the standard aluminum stock tensioner). It sounds higher compression, definitely, now that I examine it more closely. The cams are awesome too with .474 lift and decent duration and only 109 degree LSA. I went to pickup some RX at the Walgreens driveup window today, which has a brick wall next to it. That is a great way to hear your cams; idling about 2 feet from a brick wall. WOW, what concussion. It never did that stock. Two guys asked me if they were full race cams and two women told me I needed a tune up. Later. [/QUOTE]
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