i have decided to go with a short block and get parts as i can. i am looking at the 406ci. i am not looking for a race motor to spray or blow. i just want a strong street motor with some afr 210's.


http://www.gustafengines.com/index.c...rt_Blocks.html

thanks.

 

i want to know more details, like what's a preformance bearing and race preped crank. i'd also not want hyper pistons with a power adder.

 

i will not be spraying or blowing. i just want a strong street motor.

 

sorry i misssed the "not" in your original post

 

This is how I would build it:

406" SBC

- forged flat top pistons for 5.7" rods
- forged 4340 crank
- Eagle 5.7" rods, APR bolts
- AFR 210 heads 68cc chambers
- Comp Cams XE274H
- Hooker 1-3/4 long tube headers
- Holley 750cfm double pumper
- Performer RPM intake manifold
- MSD Street Pro Billet distributor
- MSD Digital 6 or 6AL box


I think thats a good way to start. I know someone with an engine almost the same as that, but with a bigger custom-grind solid roller cam, and AFR195s milled to 65cc chambers, that runs 12.2s with rediculous consistency.

 

I'm with ede. They seem a little vague in some areas. I would e-mail or call them and get the details about what's all done to the engine.

As to what Adam says, for AFR 210's, give it more cam.

 

Sounds like they are running an OE block. IMO, that is a little too big for an OE block. If it doesnt self-damage the cylinder walls, I would still fear cooling issues.

Price is right, but the parts quality scares me a little.

 

More cam certainly couldn't hurt, no.

 

12.20's from a 400 with AFR's and a solid roller? Unless that car is 5000lbs that guy sure wasted a lot of money...

I think AFR 210's are overkill and overpriced if you're looking to build a strong street 400 motor. Also, although it'd be great to have, a forged bottom end would definately not be necassary. I'd recommend Vortec heads... They'll make insane torque on a 400 with an XE274 cam or similar. Why spend a ton of money on AFR210's when you could get the same power from a factory casting at a fraction of the cost?

10:1 or better 400 with Vortecs and the right cam will propel a heavy car into the mid 11's. It all depends on how much power you want to make though. You looking for more strip than street? or does daily drivability mean the most to you?

 

Use the stock 400 block and crank or an eagle or scat cast crank and some eagle sir rods 5.7 length with a probe or trw flat top. have it ballanced. AFR 195 or voertec heads If using the vortecs be carfull with comp. may be to high. and a comp 294s soilid or 292 hyd with a 1.6 ratio rocker and a performer rpm with a 750 carb. Also zero deck the block.That sould make a great street motor with tons of torqe and will net you some 11 sec ets.

 

I agree... I'd run a solid cam in a motor like that so long as you dont mind checking the lash every once in awhile. I've posted this combo in a million threads before (because its the fastest/cheapest/most streetable combo I've seen) but a friend of mine is running a 10.8:1 400, stock 20/20 crank, stock 400 rods, and kb hyper pistons with unported Vortecs, Comp's XS282 solid, super victor intake, 750 demon, 1 5/8" headers with 2.5" duals, 3.42 gears, 235/60/15 ET radial tires, and a 4000 stall. All this in a 3600lb car its been 11.60 @ 113mph N/A. Runs on 93 octane pump gas and gets driven literally hundreds of miles a week. This same motor on a 125HP shot has hit high 10's and 122mph

In my opinion it is one of the greatest budget street motors you could build. It makes a ton of torque and HP, gets shifted at 5500RPM and has a lot of street maners. I'm going to start peicing together a similar combo but with a 383 pretty soon and hopefully it'll run just as good.

 

I think he's talking about my car. My 3600lbs has run 114.7mph at 3500' DA with a small cam and a dual plane. There is definately more in it but that's what you are running on nitrous. I agree that AFR 210s (while great heads!) are maybe a bit too much for a milder street motor. Especially matched too something like an XE274.


A .030" overbore??? That's the norm on 400 small blocks. I wouldn't go .060" without a partial fill but most of the guys with 400s don't have virgin blocks anymore.

 

Sorry, I missed that it was a 400 block, thought they were using a 350.

 

I have had one of Gustaf's shortblocks in my car now for 3 years. Call him & ask questions & tell him what you are doing. He is very knowledgable & easy to talk to.