383 Build

[82chevy350]

So i havent been on in a long time i been ti tired and busy to do anything.. lol
I sold my 1954 willys to do this build for my 82..
Its a vortec block and have bought a 383 eagle balanced rotating assembly for it..
Im thinking about going with a LT4 hot cam and was wondering what yall think about this cam

 

[HotRodPC]

I"m not aware of the LT4 cam specs. But that thing will haul some ass with the crank kit. Which kit did you get? Come with rods and all balanced? Flat tops or dished pistons? If you got flat tops, you better use a biggo cam or your compression will be to high for pump gas today.

 

[82chevy350]

I got the kit that contains
1 Eagle Cast Steel 3.75 Stroke Crank
8 Eagle i beam rods Bushed With Arp Rod Bolts
1 Set of Clevite rod and main bearings, P Series
8 SpeedPro 383 pistons 4.030 bore, 10.7:1 Compression with 64cc heads, 9.4: Compression with 76cc heads.
1 Set of Perfect Circle moly rings
1 Pioneer Balancer
1 Pioneer 168 tooth Flexplate
Rated to 500hp

LT4 Hot Cam
Cam Style Hydraulic roller tappet
Basic Operating RPM Range 1,800-5,800
Intake Duration at 050 inch Lift 218
Exhaust Duration at 050 inch Lift 228
Duration at 050 inch Lift 218 int./228 exh.
Advertised Intake Duration 279
Advertised Exhaust Duration 287
Advertised Duration 279 int./287 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.492 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.492 in.
Valve Lift with Factory Rocker Arm Ratio 0.492 int./0.492 exh.
Lobe Separation (degrees) 112

 

[Jims86]

Your going to want to change your final drive ratio to make up for the grunt being pushed up the rpm range.

 

[82chevy350]

Well right now im running stock 2.73s

 

[bucket]

Your going to want to change your final drive ratio to make up for the grunt being pushed up the rpm range.

Normally I'd say the extra cubes will make up for it...

Well right now im running stock 2.73s

But yeah, the 2.73 has to go. Sticking with the th350? If it sees much highway use, I'd be looking for something in the 3.23 range. If not much highway or going OD, 3.42 or 3.73.

 

[82chevy350]

well im thinking bout goin with some 3.07s till i can find some 3.42s or 3.73s

 

[HotRodPC]

I wouldn't even waste my time doing a 2.73 to 3.08 gear swap. Very little difference for all the work involved.

 

[82chevy350]

Well wouldnt the 2.73s be good for mileage if i do alot of interstate driving

 

[HotRodPC]

Probably so if you don't have an OD trans, but don't expect to take off a light quick or pull heavy loads. The ultimate IMO, would be a 3.73 or 4.11 ratio with a well built OD trans so you have your cake and eat it too.

 

[Camo]

Agreed 3:73 would be the direction I would head in..

 

[johnmc]

373 with a 700 r 4 you will love it.

 

[82chevy350]

Well id like to move with a 700 r4 how much of a pain is it to put one in?

 

[johnmc]

with out over drive i would stay away from 3.73's .3.42's might be a good pick.

 

[82chevy350]

http://www.summitracing.com/parts/HRS-180305-08/
Im thinking about using this cam i heard howards cams are some of the best

I had a lunati bracket master 2 almost with the same specs i loved the sound of this cam and figure it will sound the same but even better bein a 383