Ryans_pewter_ss

iTrader: (9)

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

C5Owner1

If you are going to spray 200+ shoot of NOS, you are better off with the iron block 408. If you going to stay N/A go with the aluminum block 418.

99blancoSS

iTrader: (115)

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.

Ryans_pewter_ss

iTrader: (9)

Thanks alot! Are you still selling engines?

stevenp

454 lsx ftw

Ryans_pewter_ss

iTrader: (9)

Yeah that would be nice! My budget won't allow that right now. trying to buy land also. Maybe soon I can do that!!!!

stevenp

well you could always go with a stock ls1 and wait until you have everything settled and the money for one...or a 418 will do pretty good too.

99blancoSS

iTrader: (115)

Most definitely. HKE precision race engines only.

6LTRiceater

I'd go with the 408

Trevor @ Texas Speed & Perf.

iTrader: (3)

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

Ryans_pewter_ss

iTrader: (9)

Thanks Trevor! When I come back from vacation i'll prob pick one up

mike c.

iTrader: (1)

418CI no replacemant for displacement.

NemeSS

iTrader: (127)

another vote for HKE engine

blade*13

i always say bigger is better!

the_merv

iTrader: (88)

Depends on how much you want to spend.

InsaneDomestics

iTrader: (28)

Since your wanting to spray I would definitely go with the Iron 408 for strength and durability.......Just My Opinion

MelScrilla

iTrader: (2)

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.

Jason 98 TA

iTrader: (4)

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!

99blancoSS

iTrader: (115)

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 =

Jimmy P

iTrader: (177)

I would go with the 418, just get it built right. I understand that aluminum isn't quite as strong as a iron block, but there are plenty of aluminum blocks out there making big power.