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a few basic questions

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Old 01-14-2002 | 08:58 PM
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From: Cobleskill, NY
a few basic questions

I want to make sure I now whats in my engine before I break it down. These are basic questions and just making sure. My engine is 1989 5.7 TPI What size studs do my rockers have? I do have one pc rear seal , right? What are length of my rods? What are length of my push rods? What kind of pins are in my pistons? Thanks
Old 01-14-2002 | 09:48 PM
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89BB,

Presuming you have an original '89 350 TPI, you should have 5.7" con rods (center distance), 7.20" push rods, pressed piston pins, 3/8" -24 UNF rocker studs (pressed in), a one-piece real main oil seal, cast iron crankshaft, two bolt main bearing caps (with the thrust bearing on #5 cap), cast iron heads with 1.94"/1.5" valves, dual 1.240" diameter valve springs (with inner damper spring) at an installed height of 1.72", exhaust valve rotators, 11/32" diameter valve stems, 4.90" valve stem length, hydraulic roller lifters with "dog bone" and "spider" retainer system, link-belt style timing chain, dual lip front oil seal, steel distributor gear, 9.025" deck height, 2.45" crank main journals, 2.10" rod journals, 1.8675" camshaft journals, and probably a few other things that are relevant but I can't think of.
Old 01-15-2002 | 06:48 PM
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Hey Thanks. Any suggestions on new pistons? I will be running 89 corvette heads with ZZ4 cam. Heads have been worked to match cam lift. I am still a bit confused on what rods , crank and pistons to run. I look at a PAW book and there are many choices. I am building a street car but would like to run it on the strip once in a while. RPM range 5500 max. I am putting in 22 lb. injectors and want to upgrade my TPI to 52 mm body, SLP runners and then SLP headers. Any help would be great.
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