Fairmont 2.0 (forged lq4, s480, 800whp, under new management)
#1964
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I was at the track Saturday and got to see the car run. My dad and brother were there with me, they were impressed with the cars performance too. I told them the story about the car and they liked it.
#1967
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Wiseco now makes a 5.3 piston that they named "junkyard dog". It fits on a stock rod with a stock pin. Here is the catalog.
http://wiseco.com/Catalogs/Automotive/Chevrolet.pdf
http://wiseco.com/Catalogs/Automotive/Chevrolet.pdf
#1969
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Wiseco now makes a 5.3 piston that they named "junkyard dog". It fits on a stock rod with a stock pin. Here is the catalog.
http://wiseco.com/Catalogs/Automotive/Chevrolet.pdf
http://wiseco.com/Catalogs/Automotive/Chevrolet.pdf
It does, until you add it all up as well as the machining. I bought a full set of stock 5.3 pull outs with rings and pins for $70 shipped.
Also, the JYD pistons would yield slightly less than 9:1 compression with the 64cc chamber of the 243 head. So, I would wind up with less compression than I want. As a result, I would probably want to mill the heads a bit. More money and then the possibility of PTV issues, the need for new pushrods, etc. It starts to add up quickly. If it were just an issue of "chucking them in," I would be all over them.
Mike
#1972
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Put in those forged Wisecos with lower compression and you can make some crazy power to really give those rods a strength test!
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#1975
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You wouldn't want to throw off the bobweight by too much though, I wonder if Wiseco tried to match the weight of a stock piston at all with these? I mean the whole point of them is to be able to just throw them in there, right? Maybe with a light brush honing or something...
#1976
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Ive had plenty of friends throw in pistons on stock rotating assemblies without getting anything balanced without any issues, weren't LSx's but Im sure it goes for general automotive mechanics. Look at the guys who flycut there pistons on stock short blocks to clear big cams. Im sure balancing would be needed if he plans on turning ALOT of RPM. Id run a forged piston and just be done with the cracking ringlands.
#1977
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I did go look at the car but you weren't there, talked to someone and they told me you just walked away. I am building a 5.3/S475 turbo setup for my car and I will start running at SCR and No Problem so next time I see your car at the track, I'll be sure to introduce myself. Clint
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So anyway, did you ever notice any roughness at certain RPM ranges or anything at all?