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Question about MY redline, not just a general 289

  • Thread starter Thread starter streetstang67
  • Start date Start date Jun 7, 2005

streetstang67

Member
Mar 5, 2003
573
0
16
Lexington, SC
Jun 7, 2005
#1
  • Jun 7, 2005
  • #1
Whats my redline, peak power rpm, and/or highest point to rev without ruining everyhing?

Factory "C-code" 1967 289 block, rebuilt to stock specifications except for the following:
Comp XE256H Cam, lobe center 110
lift: .477,.484
duration: 256, 268
Stock valves (1.77, 1.45) with springs to match cam.
Proform aluminum roller rockers (1.6:1)
Machine shop polished/ported (but still same size valves)
Edelbrock Performer RPM intake manifold
Holley 600cfm vacuum secondary carb
Hooker headers with dual exhuast
flex fan, alternator, and A/C on the belt(s).

So, what do you think? Also, how much hp/tq you think i'm putting out?
 

65ShelbyClone

Founding Member
Sep 9, 2000
4,675
38
119
Antelope Valley, SoCal
Jun 8, 2005
#2
  • Jun 8, 2005
  • #2
There are three potential redlines with your parts: the point at which your cam is maxed out and either stops making power or starts floating the valves, the point at which your whole engine stops making power(different than just the cam), and the redline at which you start breaking parts. With stock rod bolts, I would expect a safe physical redline of around 6500. For power, I would guess it to peak 1000rpm below that. I'm not good at guessing numbers, but I would say ~230rwhp.
 

12sec67

Active Member
Oct 6, 2003
1,301
1
36
San Diego, Ca
Jun 8, 2005
#3
  • Jun 8, 2005
  • #3
stock main bolts tend to stretch over time when reving above 5500rpms.

also stock old 302 only had 180-200 flywheel hp to begin with. he may have approx. 200 at the wheels now.
 

2bav8

Founding Member
Nov 30, 1998
2,511
1
47
Mesa, AZ
Jun 8, 2005
#4
  • Jun 8, 2005
  • #4
Your shift point is probably in the range of 5000-5200 RPM. I would expect flywheel HP would be close to 230.
 
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