BUILD THREAD 1987 Chevy El Camino

[78 grand prix]

very nice !!! get er done. keep us posted

 

[ElCamMan515]

Received a call from the machine shop today. Motor had to be bored from .30 to .40 as the original shop that did machining on block bored and honed cylinders without torque plates so cylinder bores were out of round. Now I have a 357 CI small block. Does anyone have any advise or concerns with running a elgin 1165 cam? Specs are below:

Part Type: Camshaft
Application: Chevrolet SB V8 262, 265, 267, 283, 302, 305, 307, 327, 350, 400 1955-2002
Ignition Firing Order: OE (1-8-4-3-6-5-7-2)
Cam Style: Hydraulic Flat Tappet
Basic RPM Range: 2200-5400
Manufacturers Description: Fair idle. Street/Strip. Mild Bracket. Oval Track.
Intake Duration @ .050": 234
Exhaust Duration @ .050": 244
Advertised Intake Duration (@ .006"): 303
Advertised Exhaust Duration (@ .006"): 313
Intake Valve Lift with OE Rocker Ratio (1.50): .488"
Exhaust Valve Lift OE Rocker Ratio (1.50): .508"
Intake Lobe Lift: .325"
Exhaust Lobe Lift: .340"
Lobe Separation Angle: 106 Degrees
Intake Centerline: 102 Degrees
Manufacturer: Elgin Industries
Manufacturer's Part Number: E1165

I have 492 angle plug heads with 2.02/1.60 valves and 64cc chambers. Heads have been ported on intake and exhaust.

Thanks,

Tim

 

[Injectedcutty]

That would be a pretty decent cam as long as you aren't worried about vacuum. With 106 on the lobe separation it will definitely be lopey at idle, but if you are running the vacuum brake booster you will notice "stiff pedal" issues as the cam will most likely not produce adequate vacuum to operate the brakes effectively.

If you already have the cam, the vacuum issues can be addressed via a pump. If not, look into some other brands with specs close to the elgin....but with a higher lobe separation at 113 or above. I have a comp 268xfi cam waiting that has a decent powerband, and better vacuum producing characteristics.

Just my .02....I'm sure others will chime in.

 

[ElCamMan515]

Injected cutty,

Thanks for the information I already have the cam and am not concerned about vacuum to run power brakes I was thinking about running a vac pump.

Tim

 

[Injectedcutty]

Injected cutty,

Thanks for the information I already have the cam and am not concerned about vacuum to run power brakes I was thinking about running a vac pump.

Tim

You are good to go then Tim. That cam should keep that 357 happy and give a decent midrange powerband. It'd be recommended to have a converter that has a stall to match the cam.

I have an electric pump mounted in my trunk that does an awesome job keeping my power brakes running right! It's a CVR brand with summits name on it. It wasn't cheap but it's self contained, compact, and fairly quiet.

 

[ElCamMan515]

I was told to get a 2500 stall by the shop building the motor.

 

[Injectedcutty]

That sounds about right....that elco should be pretty spunky off of idle! Keep us all posted with pics as it comes together, and videos of it running are always music to our gearhead ears lol!

 

[ElCamMan515]

Its going to be a couple years. Motor is being built this spring, but our family is growing by 1 more this summer so elky will be a slow project but I'll be sure to post pictures as I work on it. I am also knee deep in a body swap for a 1999 dodge 2500 ext cab long bed pick up. Need a family/camper hauler before tire burner.

Tim

 

[Injectedcutty]

In the same boat there buddy, I've been working on my cutlass resto for 5 years now! Family first, save a little back for the hotrod and do a little at a time!

 

[383_GrandPrix]

You should put your Elco in the g body of the month thread before it gets closed and voting starts!