408 or 418???
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408 or 418???
I messed up my motor and am trying to decide between a 408 or 418. The car is a 02' SS with a th350 rvmb, pst drive shaft, moser 12 bolt, all supporting suspension. I already have L92 heads and a direct port L76 intake that can go up to a 400 shot i believe, 90mm tb, and a stand alone fuel system, and long tubes, x pipe and true duals. Its not an all out drag car or a dd. I wanna be able to drive around town though. Any suggestions? Prob gonna spray a 200 shot or a little more
#3
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Budget comes into play as well. The iron block 408 is less money than the LS3 416.
Iron is more durable than aluminum but thats not to say you wont get good use from an aluminum block running a 200 shot either. Tuning plays a big part in longevity as well as a few other things.
Really comes down to budget in this case IMO. The 416 should make more power as well, all be it not a huge amount more. I always like to build as many cubes as you can afford for the application.
Iron is more durable than aluminum but thats not to say you wont get good use from an aluminum block running a 200 shot either. Tuning plays a big part in longevity as well as a few other things.
Really comes down to budget in this case IMO. The 416 should make more power as well, all be it not a huge amount more. I always like to build as many cubes as you can afford for the application.
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Budget comes into play as well. The iron block 408 is less money than the LS3 416.
Iron is more durable than aluminum but thats not to say you wont get good use from an aluminum block running a 200 shot either. Tuning plays a big part in longevity as well as a few other things.
Really comes down to budget in this case IMO. The 416 should make more power as well, all be it not a huge amount more. I always like to build as many cubes as you can afford for the application.
Iron is more durable than aluminum but thats not to say you wont get good use from an aluminum block running a 200 shot either. Tuning plays a big part in longevity as well as a few other things.
Really comes down to budget in this case IMO. The 416 should make more power as well, all be it not a huge amount more. I always like to build as many cubes as you can afford for the application.
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#10
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The 408 iron-block and 418 LS3 are both popular setups. From a nitrous standpoint, an iron-block will be a better choice on the larger shots because you won't have near as much distortion in the cylinder walls. The LS3 saves weight since it's aluminum, but the iron-block does offer added rigidity. We have both 408 iron and 418 LS3 short-blocks in stock! Most of our setups are built using a Callies CompStar crankshaft and CompStar connecting rods, and we have multiple piston sets to accomodate varying combustion chamber sizes. Most of the engines on the shelf have Wiseco pistons with the steel top/napier 2nd ring sets. The steel top rings are excellent for power-adder setups and can handle the heat much better. The napier 2nd ring allows for maximum oil control. Since you'll be running L92 cylinder heads, you'll want a flat-top piston set no matter which way you go so you can have some decent compression. I have both 408 iron short-blocks and 418 LS3 short-blocks built that can accomodate exactly what you're going to need! All of our short-blocks are fully balanced and blueprinted. Just because we keep them in stock does NOT mean that they should be labeled as "cookie cutter". This simply means that we have the resources to keep engines in stock for customers! We build many different varieties to keep in stock in an effort to accomodate most customers' needs.
Feel free to give us a call, PM, or e-mail with any questions or concerns. We can have a short-block shipping out next week.
Trevor
Texas Speed & Performance
Feel free to give us a call, PM, or e-mail with any questions or concerns. We can have a short-block shipping out next week.
Trevor
Texas Speed & Performance
#17
i would do the 418 LS3 if budget isn't an issue. A 200 shot isn't anything crazy and guys are shooting that on aluminum motors all the time. but that being said the iron 408 from tsp is almost 1k cheaper. if your staying N/A or 150 shot or below you could check out the LS3 427 for the same price as the 418.
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I definately prefer the 418 & my bet is Trevor can make you a pretty good deal on one! We also have a 454 LSx in stock if you get crazy! I know he has some pretty crazy pricing on that 454!!
I'd take the bore the 418 offers, but for the tighter budgets you really can't beat a 408!
I'd take the bore the 418 offers, but for the tighter budgets you really can't beat a 408!
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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
#19
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I agree with Jason, bigger is better You also won't second guess yourself later but 10 cubic inches isn't that much. Yes you should make more power with the bigger engine but the 408 is nothing to sneeze at. Depending on the valve-train you can make anywhere from 470 to 600+ at the rear wheels with the 408. The short block is the base but the top end makes the power so take that into consideration.
Also the more cubes you build the more street-able the power can become. Big cubes, big heads small cam =
Also the more cubes you build the more street-able the power can become. Big cubes, big heads small cam =