small block build ?

[JoeDust451]

ok guy's another ? will any of these other heads like the J, X, or 587 get me the HP i want as the eddie heads would i dont care if iron or not just want the performance thanks guy's

I'd run the KB190s with the Iron Js, There a quench dome, I ran these on a .060" 360 with the XE284H cam, stock J 915 heads, RPM Airgap & 750dp, 3000 stall & 4.56 gears, 28" MT, It was a screamer & had no problems on pump premium, total timing at 35*, compression was right around 10.3.1, I think the KB191s have a tighter quench.

http://www.kb-silvolite.com/kb_car/performance.php?action=details&P_id=15

http://www.kb-silvolite.com/kb_car/performance.php?action=details&P_id=17

The 191s might be a bit much.

 

[ironram]

you guy's think lunatis 60405cam would be a better choice for my build or to much for it i reall didnt want to run such a high stall as reccomended i was thinking like 2800 at most and wanted to run 355-392 gears i want it to be street friendly but when i pull up you know it means buisness or i was thinking comp cam XE285HL and i only started thinking about more lift cause i was going to run 1.6 rockers with the 60404 but got a good deal on a set of comp cam mag 1.5 rockers so figured id up the cam what do you guy's think?

 

[JoeDust451]

you guy's think lunatis 60405cam would be a better choice for my build or to much for it i reall didnt want to run such a high stall as reccomended i was thinking like 2800 at most and wanted to run 355-392 gears i want it to be street friendly but when i pull up you know it means buisness or i was thinking comp cam XE285HL and i only started thinking about more lift cause i was going to run 1.6 rockers with the 60404 but got a good deal on a set of comp cam mag 1.5 rockers so figured id up the cam what do you guy's think?

If you go with either the XE284H or XE285HL, or the Lunati 403/404 & run 1.5 rockers (adjustable), Run the KB190s, Mild or stock J heads, even X heads, A 34-3600 stall & bare minimum 4.30 gears, 750dp you'll be more then happy, It'll kick some serious butt & still be very streetable, Make sure you invest in a good adjustable ignition. Its all up to you, what do you "really" want for perf., IMO by your tone, you want something on the mean side but still streetable, This combo will do it & you'll have great quench.

 

[ironram]

The pistons i dont want to change cause i bouht the short block the way it is but everything else i am open to and i do want it on the mean side but if i wanted to drive it a half hour fown the freeway to work i could and take family to dinner on weekends etc

 

[MoparAnglia]

If you go with either the XE284H or XE285HL, or the Lunati 403/404 & run 1.5 rockers (adjustable), Run the KB190s, Mild or stock J heads, even X heads, A 34-3600 stall & bare minimum 4.30 gears, 750dp you'll be more then happy, It'll kick some serious butt & still be very streetable, Make sure you invest in a good adjustable ignition. Its all up to you, what do you "really" want for perf., IMO by your tone, you want something on the mean side but still streetable, This combo will do it & you'll have great quench.

4.30 bare minimum? Depends on tire size not just rear gear. If running a short tire 4.30s will be a PITA. You don't need steep gears to have a fun street car, likewise converter stall. A 3k converter will act a tad looser with longer gears anyway.

If sticking with the pistons you have then get some aftermarket closed chamber heads as already mentioned, the 404 cam with the Comp rockers and 750 carb then figure a rear gear you can live with on the freeway. Rear gear is essentially free horsepower but you may find buzzing 4000rpm for half an hour unpleasant.

 

[airwoofer]

My stroker and my 340 both have the Comp 292H purple 508 (509?) cams. Ther stroker has 1.5 and I don't know what the 340 has for rockers (they are alum rollers and anodized orange) but it has some pretty stock heads. The cam works great in both motors with lotsa "idle" and plenty of top end scream. 10-1 on the ported eddy head stroker. They will notice that it is not stock for sure when they hear it idle - that is why they call it the "nostalga" cam I think. My 3.91 gears with 275/60-15 tires are pretty good for cruising around surface streets at 2000-2500 where the cam is just starting to work. Makes for a fun street ride.

For driving around the street that 5 gallon cell isn't much for range and I am picky about not using jokenol so my gas station options are limited. Keep that in mind...

 

[ironram]

ok things have changed im now going to stroke it and would like to use same cam,heads but will i be able to use the pistons i have or do i need to sell them along with the balanced crank i have a guy building my trans right now in Co and it will be pretty stout any suggestions on this stroker build looking to get 500-550 Hp and would like it to be real torquey.

 

[MoparAnglia]

ok things have changed im now going to stroke it and would like to use same cam,heads but will i be able to use the pistons i have or do i need to sell them along with the balanced crank i have a guy building my trans right now in Co and it will be pretty stout any suggestions on this stroker build looking to get 500-550 Hp and would like it to be real torquey.

Okay, firstly, you do not have a balanced crank, you have a balanced rotating assembly. The counterweights of the crank have weight added or removed to match the weight of the pistons, rods etc. The crank alone is balanced to nothing.

Sell it as a balanced assembly as the pistons are no good for a stroker. Longer stroke means shorter compression height pistons.

Difficult to suggest stuff if you've already said you're going to use the same top end and a stroker assembly....

 

[ironram]

Okay, firstly, you do not have a balanced crank, you have a balanced rotating assembly. The counterweights of the crank have weight added or removed to match the weight of the pistons, rods etc. The crank alone is balanced to nothing.

Sell it as a balanced assembly as the pistons are no good for a stroker. Longer stroke means shorter compression height pistons.

Difficult to suggest stuff if you've already said you're going to use the same top end and a stroker assembly....

Well i would be open to suggestions i just want to do it right the first time. How will the stock rods holdup or do i need better?

 

[MoparAnglia]

Well i would be open to suggestions i just want to do it right the first time. How will the stock rods holdup or do i need better?

Okay, well if you're serious on going to a 408 the 360 bottom end will be a lot easier to sell on as a complete balanced assembly.
Stock rods can be made to live at 500hp levels but really need upgraded bolts.
A complete stroker bottom end will give better value for money than picking out individual parts too.

Go with a kit using say, Scat cast crank, Scat I-beams and KB/Icon Forged dished pistons for safe use of pump gas.

Brian's first 410 build (featured in Car Craft) pretty much nailed this combo and made 485hp with RHS heads, a big hydraulic flat tappet cam and 750 carb.

IMO getting over 500hp is doable with the hydraulic cam and a slightly bigger carb, though a little extra head work might be needed.

Beyond that, a hydraulic roller or solid flat tappet would be needed to reach 550hp.

 

[ironram]

Well i can get a scat crank for 300 and id like to 10.5.1 - 11.1 so could use stock rods but im going to dee what i can find and ill see what i can do for pistons would would voodoo cam 60405 work id like to stay with the voodoo if i could??

 

[SBDart]

I am using the same cam as you and the same scat 9000 crank and scat i beam rods w/ bk 416.+ 0.70 piston on a 340 block. Bored 30 overs w/ rhs indy x' 1.92/160's all set up my mike @ mrl preformance but i am using a super victor in take an a bigs 750 stage 5 carb. Mike said it should make around 450/475 hp.
So keep up the good work .

 

[Brian Hafliger]

Well i can get a scat crank for 300 and id like to 10.5.1 - 11.1 so could use stock rods but im going to dee what i can find and ill see what i can do for pistons would would voodoo cam 60405 work id like to stay with the voodoo if i could??

If you use stock rods, because they are so heavy you'll spend more on heavy metal balancing the crank than if you went with the Scat I beam.
With crappy Cali pump gas, I'd be careful about going over 10.2:1 compression unless the cam will be really big and wide lca.
JMO...
Brian

 

[SBDart]

here is the a look at the kb pistons in my block and the is at the very top of the deck. will the using RHS heads. in my early post i said i was using the same cam . i am sorry i am using the 405...... Hp i was wrong on hp also the right HP is 480 hp. still not back.

• Advertised Duration (Int/Exh): 284/292
• Duration @ .050 (Int/Exh): 242/252
• Gross Valve Lift (Int/Exh): .533/.552
• LSA/ICL: 110/106
• Valve Lash (Int/Exh): Hyd/Hyd
• RPM Range: 2500-6600
• Includes: Cam Kit

Part Number: 60405LK

 

[1wild&crazyguy]

Mopar SB Heads 3671587 2.02/1.60 Ported and Polished

found these on ebay any idea to how these would work compared to the eddies will they get me to the HP im looking for?

No body has told you what the eddies flow ootb, they flow 240'ish...and sometimes need corrective work in order for them to last, but are a good head and like the rhs...if starting from scratch 'depending on cost comparison' can be a good start.

The x,j....2.02 version from the factory flows around 225-228cfm, if they were ported by someone who knows where to grind, they'll easily go into the mid 250-260's, and with a lil more extensive porting, flow 270-280's cfm

As for quench, that depends on the cyl pressure, as to wether you need a closed chamber or not.

id say that 1200 for eddies that are really ready to run, as in all checks out on them....is a decent deal... being that they end up costing almost 1600 by the time they are shipped and with tax 'brand new'

as for 8-900 on ported factory iron 'say they that they do flow 250+cfm'...is also a really good deal, but the you'll be limited in the compression depot on pump gas a lil more than with aluminum 'with those pistons'......but in all seriousness....a half a point or even full point is not worth the hp that the better air flow will give...so, if you're focus is max compression on pump gas, go eddy's....if it's cost vs most hp gained in the end...just go with the better airflow.
jmo