silverado777 Posted March 7, 2011 Report Share Posted March 7, 2011 So I sent my LQ4 block off to be cleaned before I take it to the machine shop. I'm getting to the point where I need to start buying parts so I was thinking about buying this... What do you guys think? http://www.calspeedperformance.com/product_p/callies%20rotating%20assembly%20ls2.htm Callies Compstar LSx 4340 Forged Crankshaft 3.62'' Stroke Wiseco 4.030'' Bore, 6.125'' Rod, 3.62'' Stroke, -3.2cc dish I'll have to call them but i am pretty sure they come with rings as well. Quote Link to comment Share on other sites More sharing options...
misterp Posted March 7, 2011 Report Share Posted March 7, 2011 (edited) I would save the $$$ and use the stock crank - they take LOTS of abuse, provided the connecting rods don't weigh a f'n ton. Just how much torque are you thinking of making? Mr. P. Edited March 7, 2011 by Mr. P. (see edit history) Quote Link to comment Share on other sites More sharing options...
sprayed99 Posted March 7, 2011 Report Share Posted March 7, 2011 I would save the $$$ and use the stock crank - they take LOTS of abuse, provided the connecting rods don't weigh a f'n ton. Just how much torque are you thinking of making? Mr. P. Quote Link to comment Share on other sites More sharing options...
Krambo Posted March 7, 2011 Report Share Posted March 7, 2011 I would save the $$$ and use the stock crank - they take LOTS of abuse, provided the connecting rods don't weigh a f'n ton. Just how much torque are you thinking of making? Mr. P. I agree, the stock GM crank is a stout piece. I believe I read where guys on LS1Tech have pushed it over the 1000HP mark consistantly with no issues. Quote Link to comment Share on other sites More sharing options...
silverado777 Posted March 7, 2011 Author Report Share Posted March 7, 2011 (edited) Well I don't have a specific number in mind. My goal is as much as I can get. However, I would like to put at least 500hp to the wheels when i'm done. My idea is to build a forged 370 with low compression. Port and polish the 317's and use a 224/230 .581/.592 cam and of coarse all the goodies like lifters and roller rockers. Then a little later down the road put a radix on top. And of coarse a built 4l60e with a 2800-3200 stall. I have roughly around 5k to throw into the engine. Edited March 7, 2011 by Silverado777 (see edit history) Quote Link to comment Share on other sites More sharing options...
misterp Posted March 7, 2011 Report Share Posted March 7, 2011 (edited) ... My idea is to build a forged 370 with low compression... GREAT idea - use the factory block, crank, and rods, add aftermarket rod bolts & forged pistons & premium rings; put all your money into the valvetrain. And you don't need to build a "low-compression" motor, maybe 9.8:1 Radix blowers don't like a ton of RPM, so I personally would stick to maybe a 6200 or 6400-RPM ceiling That should help a lot with cam selection. Consider upgrades that give rock-solid valvetrain, so pushrods, springs, retainers, locks, etc. Maybe splurge on a set of good GM lifters. Converter for max-effort Radix I personally suggest TCS 2800, might consider 3000 but that would be a really racy stall speed for a Radix, don't go more than 3000 and err to 2800 if you are not sure. Take the money you save and put it into manifolding & head work. Mr. P. I'm going to add another thought - the Radix generally works well with cast (factory) pistons provided you have a good tune, why modify the short block at all?! Consider just installing a set of aftermarket rod bolts for 'cheap insurance'. Now if you are going to run a large centrifugal or turbo or TVS2300 then that is enough cylinder pressure to consider going to a (stronger) forged piston with reinforced top ring land. My two cents. Mr. P. Edited March 7, 2011 by Mr. P. (see edit history) Quote Link to comment Share on other sites More sharing options...
04CHASE Posted March 7, 2011 Report Share Posted March 7, 2011 if your going to spend on a forged crank , then do a 408 . that is the only added cost od doing a 408 if your buying new rods and pistons anyway. You live near zippy he can give you some really solid advice and possibly set you up with everything locally for the same price . imo buying locally can be better if you can get a deal just in case a problem arrise's your not stuck paying shipping and waiting. why not build a nice 408 with that 5k , screw the blower . and build it for some compression (11.0-1 ) and you will get 500 rwhp+ on pump gas while having a motor that looks stock . just saying ive been down this exact road and to do it again this is what i would do. if your planning on beating on it with 500+ id consider the 80e swap for longevity. Quote Link to comment Share on other sites More sharing options...
silverado777 Posted March 7, 2011 Author Report Share Posted March 7, 2011 (edited) if your going to spend on a forged crank , then do a 408 . that is the only added cost od doing a 408 if your buying new rods and pistons anyway. You live near zippy he can give you some really solid advice and possibly set you up with everything locally for the same price . imo buying locally can be better if you can get a deal just in case a problem arrise's your not stuck paying shipping and waiting. why not build a nice 408 with that 5k , screw the blower . and build it for some compression (11.0-1 ) and you will get 500 rwhp+ on pump gas while having a motor that looks stock . just saying ive been down this exact road and to do it again this is what i would do. if your planning on beating on it with 500+ id consider the 80e swap for longevity. Damn it Chase!!! Right when i thought I had everything figured out here you go adding your 2 cents!! lol. That was my hardest decision and now I'm back at square one. Hmmm...cubes or blower......Hmmm I'm really just looking for something that I can beat on when I want to and not have to work about it breaking. If I did a 408 I would have to spend some $ on an LS6 intake and throttle body. Also if I did a 408 I would want to plumb in for at least a 150 shot for shits and giggles...more shits than giggles...lol Edited March 7, 2011 by Silverado777 (see edit history) Quote Link to comment Share on other sites More sharing options...
misterp Posted March 7, 2011 Report Share Posted March 7, 2011 Yeah hard discussion; Stroker + nitrous is a really good setup IMO. Stock crank + boost is also a really good setup. Let's put some 'out of the box' thinking on this, what performance goals do you have? mid-12s? 12-flat? mid-11s? get kicked off the track?! Then we fellow forum members can weigh in on what the costs of both approaches to that goal would be. Mr. P. Quote Link to comment Share on other sites More sharing options...
04CHASE Posted March 7, 2011 Report Share Posted March 7, 2011 i agree with you mr p . weigh your goals and budget Now if you do the 408 , you can reuse stock 317 heads , you can re use your intake manifold . this would leave you room to grow without spending a ton on it now . if you want to do nitrous or a blower is what you need to know now . you could set it up @ 10.0-1 , make great power n/a probably get you dam near 500 to the wheels . This would also leave the option of putting a blower on later. though i wouldnt do anything less than a 2.3 l. imo that is still small and leaving power on the table but thats another discussion. some will tell you 408's have oiling problems with the added stroke but its all how its setup . i know a few guys who have 40-50k on there motors with no issues. i love spending other peoples money Quote Link to comment Share on other sites More sharing options...
silverado777 Posted March 7, 2011 Author Report Share Posted March 7, 2011 (edited) I'm thinking mid to low 12 would be a realistic goal. This truck wont be my daily driver much longer after the build and swap but I would like the capability of it being one if needed. This will not be a track truck only. I love my truck and love driving my truck even more so it will be hard not to drive it everywhere. Edited March 7, 2011 by Silverado777 (see edit history) Quote Link to comment Share on other sites More sharing options...
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