Rods
06-25-2016, 05:37 PM
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Rods I'm looking for a connecting rod (6.100 length) that will fit a piston with a .943 pin. It could be press fit or floating. All the rod I'm seeing is .927 .944 and .945. It's a lq4 build
06-26-2016, 07:53 AM
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06-26-2016, 04:37 PM
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06-27-2016, 08:34 AM
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The pistons are not forged. Just rods. I wanna build the bottom end strong so I don't have to worry about touching it down the road. The motor is going into a 87 caprice so it not a race car. Just a weekend cruiser and a Lil pep in her step. 400whp is good for me but I think I'll make more. Lq4.30 over(370) flat top pistons, milled 243 heads and a custom eps cam 234/246 602" 607"
06-27-2016, 08:55 AM
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Well that's good to know. I can drive it hard and won't have to worry about it. I'll prolly see the track once or twice a year. But a lot of street racing. Just wanted it to be strong
06-27-2016, 09:11 AM
#12
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Stock gen 4 pistons/rods are good to 850-900 HP reliably on a good tune.
Of course, both have been pushed WAY higher, we're talking 850-900 for the Gen 3 rods/pistons and 1200-1300 on gen 4 rods/pistons.
If I were you, I would just pick whatever I could get reasonably cheap/easy without overthinking it, since you're already venturing into the realm of unnecessary.
06-27-2016, 09:23 AM
#14
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That's the mentality that usually causes me to separate from the N/A guys.
This isn't 1970. These engines are very well put together.
Most N/A guys seem to think its necessary for them to upgrade pistons/rods, spend $2000 on heads to make 450 HP. I simply can't fathom doing that amount of work for such little power. I've made 700 before on a junkyard LY6 with a mild cam and a 250 shot of nitrous. I've made 850+ on a 5.3 with a single turbo. I've yet to blow up a stock bottom end, and in the 5000+ HP I've made across the LS engines I've built, I probably have less money tied up in all of the long blocks than some guys here have tied up in a single 500 HP N/A LS1 long block.
This isn't 1970. These engines are very well put together.
Most N/A guys seem to think its necessary for them to upgrade pistons/rods, spend $2000 on heads to make 450 HP. I simply can't fathom doing that amount of work for such little power. I've made 700 before on a junkyard LY6 with a mild cam and a 250 shot of nitrous. I've made 850+ on a 5.3 with a single turbo. I've yet to blow up a stock bottom end, and in the 5000+ HP I've made across the LS engines I've built, I probably have less money tied up in all of the long blocks than some guys here have tied up in a single 500 HP N/A LS1 long block.
06-27-2016, 10:16 AM
#19
this is what I would do. my truck weights a lot probly same as your car. I had a killer setup in my sig before going to a turbo swap.
Use the stock crank, get the stronger gen4 rods off ebay usually $150 bux and use a speed pro forged .30 piston. Use some good bearings like clevite or such on bottom end.
Now topend if u can swing it I would get stock 243s and send to AI to portand polish, and run a torque cam. your car is heavy and needs something like a torque stage 2 cam. And last run some nitrous if u choose to. this setup will put down over 450rwhp and over 700rwhp on a 200 shot!! Good Luck!
Use the stock crank, get the stronger gen4 rods off ebay usually $150 bux and use a speed pro forged .30 piston. Use some good bearings like clevite or such on bottom end.
Now topend if u can swing it I would get stock 243s and send to AI to portand polish, and run a torque cam. your car is heavy and needs something like a torque stage 2 cam. And last run some nitrous if u choose to. this setup will put down over 450rwhp and over 700rwhp on a 200 shot!! Good Luck!