CorvetteForum - Chevrolet Corvette Forum Discussion

C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

1970 454 + TriPower + HEI ?

Thread Tools
 
Search this Thread
 
Old Feb 8, 2016 | 01:10 PM
Share
  #1  
Tom454's Avatar
Tom454
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Default 1970 454 + TriPower + HEI ?
Anybody have this exact combo? Seems the washer pump cover might cause an issue?

http://www.ebay.com/itm/Corvette-Tac...p=mtr#shpCntId
Reply
0
Old Feb 8, 2016 | 11:08 PM
Share
  #2  
74 LS4-454's Avatar
74 LS4-454
Melting Slicks
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2006
Posts: 2,248
Likes: 67
From: Warrington PA
Finalist 2020 C4 of the Year - Unmodified
Default
Sounds interesting.......
Reply
0
Old Feb 8, 2016 | 11:41 PM
Share
  #3  
LT1driver's Avatar
LT1driver
Le Mans Master
20 Year Member
 
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
Default
had a 70 454/390 in the day I added 400hp tri to and it was nice but had stock ignition, no hei then. no interference issued anywhere.
Last edited by LT1driver; Feb 8, 2016 at 11:42 PM.
Reply
0
Old Feb 8, 2016 | 11:52 PM
Share
  #4  
1Fordman's Avatar
1Fordman
Drifting
15 Year Member
 
Joined: Oct 2007
Posts: 1,317
Likes: 22
From: Marina CA
Default
68 435 here with tach drive HEI and no clearance problems. A bit tighter fit than an original distributor but definitely workable.
Reply
0
Old Feb 9, 2016 | 06:17 AM
Share
  #5  
96 lt-4's Avatar
96 lt-4
Drifting
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2005
Posts: 1,920
Likes: 51
From: Angier nc
Default
I know you can't see it with the hood closed but the clear cap has never caught on for me.
Reply
0
Old Feb 9, 2016 | 07:28 AM
Share
  #6  
jim2527's Avatar
jim2527
Race Director
20 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Apr 2003
Posts: 19,352
Likes: 654
From: Tampa, Florida
Default
What about a small cap tach drive hei?

http://www.ebay.com/itm/Small-Cap-CH...VWTgRg&vxp=mtr
Reply
0
Old Feb 9, 2016 | 08:44 AM
Share
  #7  
Tom454's Avatar
Tom454
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Default
Originally Posted by LT1driver
had a 70 454/390 in the day I added 400hp tri to and it was nice but had stock ignition, no hei then. no interference issued anywhere.
I already ran that configuration with no problems. I'm looking to "clean up" the engine bay by removing the coil & bracket & center wire.
Reply
0
Old Feb 9, 2016 | 08:45 AM
Share
  #8  
Tom454's Avatar
Tom454
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Default
Originally Posted by 96 lt-4
I know you can't see it with the hood closed but the clear cap has never caught on for me.
Not concerned about cap color.... just fitment.
Reply
0
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Feb 9, 2016 | 08:48 AM
Share
  #9  
Tom454's Avatar
Tom454
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Default
Originally Posted by 1Fordman
68 435 here with tach drive HEI and no clearance problems. A bit tighter fit than an original distributor but definitely workable.
The 70 has a 5 port washer pump... and a pretty big pump cover. Can you please post a pic of the washer pump and HEI relationship ?
Reply
0
Old Feb 9, 2016 | 08:50 AM
Share
  #10  
Tom454's Avatar
Tom454
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Default
Originally Posted by jim2527
What about a small cap tach drive hei?

http://www.ebay.com/itm/Small-Cap-CH...VWTgRg&vxp=mtr
Trying to eliminate the remote coil.
Reply
0
Old Feb 9, 2016 | 09:27 AM
Share
  #11  
rklessdriver's Avatar
rklessdriver
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
Default
I have the big cap HEI in my 72 and it clears everything on the firewall fine (wiper motor/washer pump).

You can just see everything in the engine bay pretty good at the beginning of my video.



Obviously, I don't have the 3X2 intake, so I don't know about the rear carb that would be in front of it... but 1Fordman says in post 4 that it worked on his....
Will
Reply
0
Old Feb 9, 2016 | 10:57 AM
Share
  #12  
502 C-3's Avatar
502 C-3
Instructor
10 Year Member
All Eyes On Me
 
Joined: Mar 2014
Posts: 153
Likes: 21
Default
I have the HEI w/tach drive on my 74 with the tri power. No interference.
Reply
0
Old Feb 9, 2016 | 02:45 PM
Share
  #13  
Tom454's Avatar
Tom454
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Default
It clears the rear TriPower carb by a hair. I have a 87 Vette HEI distributor I'm detailing right now and I have the Tripower on the bench. It's the five port washer pump cover that's the question. I guess I'll just pull the distributor out of the 454 and drop in the 87 distributor to see. Thanks for all the replies. I'll be back shortly.

...It fits.

Edit:



Last edited by Tom454; Feb 10, 2016 at 03:49 AM.
Reply
0
Old Feb 9, 2016 | 06:09 PM
Share
  #14  
3X2's Avatar
3X2
Melting Slicks
25 Year Member
Photogenic
Photoriffic
Top Answer: 1
 
Joined: Jan 2000
Posts: 3,326
Likes: 523
From: home
Default
If you're trying to not have a coil and coil wire, why not a Vertex magneto?
Reply
0
Old Feb 10, 2016 | 03:52 AM
Share
  #15  
Tom454's Avatar
Tom454
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Default
Originally Posted by 3X2
If you're trying to not have a coil and coil wire, why not a Vertex magneto?
Price and ease of access to replacement parts is a factor... but especially price. Those magneto's are too pricey for this project.
Reply
0

Get notified of new replies

To 1970 454 + TriPower + HEI ?

Back to Subforum
C3 Tech/Performance
View Next Unread
Distributor Not Fully Seating




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 08:35 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE