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  #16 (permalink)  
Old 11-10-2010, 05:10 PM
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Do not assume the compression height is 1.560". Measure it yourself. Using your 6" dial caliper, hook an anvil into the wrist pin hole on the topside of the hole and measure up to the piston crown. Centerline of the wrist pin measurement should be 1.560" Top of the wrist pin bore to the piston crown should be 1.0965". If it measures 1.0765", it is a rebuilder piston with reduced compression height. I have seen information on this H345NCP piston both ways. MAKE SURE OF WHAT YOU HAVE BEFORE PROCEEDING.

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  #17 (permalink)  
Old 11-10-2010, 06:25 PM
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I am running that very cam in my 350 build on my 86 s10 and that cam will make a lot of power.

I am running the older dart iron eagle 200cc intake runner heads that got ported and bowl blended and a competition valve job done several years ago and have a proform 650 vacuum secondary carb with Edelbrock rpm dual plain air gap intake.

350 turbo transmission with 3:73 gears and let me tell you my truck does not have any issues of bottom end torque. This thing will snap me back in my seat just barely tapping the throttle.

My truck is very fast and I have not or will take it to the track but it would do pretty decent. I have good vacuum and run power brakes with no issues. It is not something you want to use in a everyday driver though.
Eric
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Old 11-10-2010, 07:04 PM
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Maybe I missed it, bu tI was surprised no one mentioned rod bolts. If you're using a stock crank and rods, I'd still recommend upgrading the rod bolts in this application. Pat
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Old 11-10-2010, 08:22 PM
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Quote:
Originally Posted by PatM
Maybe I missed it, bu tI was surprised no one mentioned rod bolts. If you're using a stock crank and rods, I'd still recommend upgrading the rod bolts in this application. Pat
Pat, being able to buy Scat Pro Stock I-Beam rods for less than $225 means that I will never again buy a set of rod bolts. By the time you fool around with 40 year old castings, you have almost as much money in them as you would for a set of brand new rods that are factory-clearanced at the cam for a stroker crank and that have been dyno tested by David Vizard to 550 hp for the last couple of years without a failure. Plus they're weight matched and magnafluxed. I'm sold.
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  #20 (permalink)  
Old 11-10-2010, 08:35 PM
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Uh, 11echo? He is running a TKO600 overdrive tranny. 3.90 gears are no problem
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Old 11-11-2010, 08:38 AM
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Tech, I'm sold too. I'm using Lunatis in my motor and think aftermarket rods of good quality are a good investment. Referring back to the original post, though, I recall reading stock 5.7 inch powdered metal rods. If that is the case, I'd recommend improved rod bolts. If the rod issue remains open, I'm completely with you.

Pat
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Old 11-11-2010, 09:32 AM
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Quote:
Originally Posted by 11echo
The only "issue" I have with your set-up it the rearend gear ratio 3:90 is abit steep in MHO (semi-surprised no one else has said any thing!??) I'd go no steeper then 3:73 with an idea set-up at about 3:50. Driving down the freeway with 3:90 is NOT fun!!! ...Been there! ...Good Luck!
The TKO-600 has overdrive.My speedo was out but I was keeping up with traffic on a 70 mph highway turning about 2200 rpms.That transmission is NICE!Thanks for the reply
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Old 11-11-2010, 09:41 AM
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Quote:
Originally Posted by techinspector1
Do not assume the compression height is 1.560". Measure it yourself. Using your 6" dial caliper, hook an anvil into the wrist pin hole on the topside of the hole and measure up to the piston crown. Centerline of the wrist pin measurement should be 1.560" Top of the wrist pin bore to the piston crown should be 1.0965". If it measures 1.0765", it is a rebuilder piston with reduced compression height. I have seen information on this H345NCP piston both ways. MAKE SURE OF WHAT YOU HAVE BEFORE PROCEEDING.
Thanks for the heads up,I will measure them as soon as I can.That rebuilder piston would certainly change things!
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  #24 (permalink)  
Old 11-11-2010, 09:45 AM
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Quote:
Originally Posted by eric32
I am running that very cam in my 350 build on my 86 s10 and that cam will make a lot of power.

I am running the older dart iron eagle 200cc intake runner heads that got ported and bowl blended and a competition valve job done several years ago and have a proform 650 vacuum secondary carb with Edelbrock rpm dual plain air gap intake.

350 turbo transmission with 3:73 gears and let me tell you my truck does not have any issues of bottom end torque. This thing will snap me back in my seat just barely tapping the throttle.

My truck is very fast and I have not or will take it to the track but it would do pretty decent. I have good vacuum and run power brakes with no issues. It is not something you want to use in a everyday driver though.
Eric
Thanks for the reply Eric.Which cam are you running the Lunati 60112 or the 60111?
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