460 redline

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Oct 20, 2000 | 12:06 AM

schtuffy

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New User

Joined: Jul 2000

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460 redline

Hello, can anyone tell me what the redline would be on a stock '77 460, and what do I have to do bump it up to about 5500rpm for more horsepower.
Also, can you tell me roughly what it would cost to rebuild it so that it cranks out 350-400 horsepower? Thanks

Oct 20, 2000 | 06:53 AM

chilly460

Senior User

Joined: Jan 2000

Posts: 161

Likes: 1

460 redline

Your basic roadblocks in that motor are intake, cam, and compression. Put a decent 9.0:1 piston in it, run an Edelbrock Performer intake with 750 vacuum secondary carb., and any kind of decent cam with roughly .500 lift and 215 degrees of duration and you'll hit those numbers. One note, you don't have to wind a 460 to 5500 to hit the hp numbers you're looking at. I'd think you'll be in the $1500-$2000 range for a rebuild depending how many parts you choose to replace, if you recondition the valve seats and guides, use new valves, get it balanced, etc.

Mar 5, 2001 | 11:22 PM

proud owner

Mountain Pass

Joined: Jan 2001

Posts: 229

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460 redline

That engine prob redlines at around 5000... I wouldnt push it much past that.
I built a 460... Pulled a junkyard motor, and invested the following:
Mild Cam (1500-4500 rpm)
Good ignition system
Speed Pro Piston Rings
Gasket Set
Bearing Set
Water Pump
3 wks of labor (porting/polishing/valves/etc.)

Engine now kicks 384 hp, 477 ft. lbs. torque at the rear wheels..
I only spent a TOTAL of 850 bucks..including the block..
Maybe I got lucky!

Good Luck.

Mar 25, 2001 | 06:20 PM

79supercab4x4

Senior User

Joined: Aug 2000

Posts: 205

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460 redline

proud owner...what year is your 460? what would you estimate your CR to be? those are pretty good HP #'s for a mostly stock sounding engine. what kind of ignition system are you using and how much do you think it helped. also, are you using the stock intake, and what kind of carb are you using?

ps...sorry to bother you but im slowly building a big block and am curious about some stuff

Mar 29, 2001 | 03:17 PM

tuff1

Junior User

Joined: Mar 2001

Posts: 55

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From: St. Helens USA

460 redline

Just remember that that engine is made for torque, not winding up like a small block. That said, with enough money you can do anything.

The only good chevy is a dead chevy