Building a CHBB 402" for hot street use.
Wants to use a mechanical roller cam,is there anything speciall to think about???...such as wear?,oil supply?,brands?,horizontal..or..vertical bar lifters?,other things?


And!...Nova 68 original weight,original chassie,TH 350 modified(not transbrake),12b passenger axle with 3.90 and eaton locking differential.Wondering about slicks size...have a pair of 14" and one pair of 15" rims.Want´s to use 28x9 dragslicks...what should i use?..14"rims...or 15" rims?..does it matter?

Jimmy..

No one?

Crower severe duty are supposed to be the best roller lifters. I have no experience with roller cams to date. I'd think the 28x9x15's would fit.

Crane´s horizontal bar lifters?..good?..bad?

Great ;)

varför fråga de här killarna.dom är jänkare och dom inte vet om att det finns andra länder också.jag har slutat med det här.det är bara några killar som vet nåt men dom är för kräsna att svara.jag sa ju i min e-mail att crover har starkaste lyftare och dyraste.grabbar 2.3 2004 blev det 14 år med olika stor blockare och jag kan läsa tekniska engelska flytande.waste of time att fråba de här killarna.jag har fått inte en enda svar som skulle varit nån hjälp.

What did he say?

godsend is a swedish guy so i answered in his own language.i speak several languages,even germany which has to be the dummiest language in the world.can you spell schwarzenegger?

The Crower Severe Duty and the Isky Red Zone lifters are probably the two best lifters you can buy. I don't think you would go wrong with either one of these.

I personally prefer the Isky's for the simple fact that they can be rebuilt while the Crowers cannot.

I been running my Crane Hor lifters for many years.

I think they are great lifters for the price of 192$

I have had excellent street life out of the Crane horizontal bar lifters-----However, you can only use 3/8" pushrods with them, 7/16"s destroy them. Of course 3/8" pushrods are just fine except for the very-high-lift, high-spring-pressure, cams.
Tell us more about your engine/car combo....

UDHarold

Car model/make/year: Chevrolet Nova 1968

Engine size: 402" BB

How many cylinders: 8

Bore and stroke: 4.126/3.760

Compression ratio: 10.00:1

Connecting rod: steel 3/8 (original rod.. with ARP waweloc)

Rocker arm ratio: 1.7

Carb size: 750 cfm (vac)

Intake manifold: Dualplane

Computer controlled ? : No

Is this vehicle required to meet emissions standards ? : No

Cylinder heads: Iron "3872-"702" 1965/66 closed (bathtubshaped) chamber with 98 cc chambers.

Cylinderheads ported ? : No (just blueprinted)

Valvesize: Intake: 2.19 Exaust: 1.88

What type piston ? :Speedpro/TRW forged

Comression ratio: 9.9:1

Transmission type: auto

Stall speed of torque converter: around 2800 rpm

Rear axle ratio: 3.90

Rear tire size: 28x9.0-15

What kind of fuel: Petrol 98 octane (swedish)=little better than your(american) best gasstation gas.

Dual exaust: 3" with 3" mufflers

Headers: Hooker competition 2"/collector: 3"

Car weight: 3.725 pounds

Rpm range of engine: 2000-6500..this is what i want!(with my last cam and engine set up:1500-5500 rpm.)

What type of cam do you want? : Solid roller

How will this engine be used? :street and strip

What type of cam that i used? :Iskenderian hydralic Megacam 270. 0.050 dur:221/221 lift with 1.7 rockers around 527/527.

Considering the present performance of my vehicle..i need : More low speed torque?: Yes.
More rpm?: Yes..(2500-6500)
Is ideling speed important?: No


I want an HOT stret and strip engine with 500+ horsepowers and a lot of torque!..i want it to pull well between 2500-6000 rpm.

Vigg,

Lunati can make you a cam. The part number, 50299, just means that it is a custom-ground Big Block Chevy. The cam would be 278/285 at .020, 244/250 at .050, .630/.630 gross valve lift, and eeither 110 or 112 LSA. The 112 LSA would have the best idle, and start pulling at a slightly lower RPM than the 110, however the 110 would pull harder in the mid-range and run quicker on the strip. This cam can be a daily driver for 5 to 10 years, some have already done so. Its' big brother, the 290/300R, finished the 24 Hours of LeMans in 2 355 Camaros, in the early 1980s.
A conservative estimate of BHP would be 510+ at 6400.....

UDHarold

I forgot to post the grind number. It is 02-UR34-UR35-10-A01. This is for the 110 LSA. If you want a 112 LSA, change the'10' to '12'.......

Harold. Can summit or Jegs deliver your cams?

Expensive to just shipa a cam to sweden ;)

Godsend,

Yes, both Jeg's and Summit can deliver this cam, but you have to make sure they know it is a custom-ground cam, and the grind number is correct.
Have them double-check with us if there is any doubt.....

UDHarold

Harold..thanks.
How much would a cam like the one you proposed cost from Summit(for example)?

Vigg,

I'm not sure of Summit's exact price, but it should be around $290 to $295, or lower.

UDHarold