C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations

Need help to identify engine

Thread Tools
 
Search this Thread
 
Old Jul 1, 2016 | 07:37 AM
  #1  
FormerUser4.18.25's Avatar
FormerUser4.18.25
Thread Starter
Racer
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 414
Likes: 121
Default Need help to identify engine

Helping a friend with his 1960 Corvette. We know the car came originally with a Fueile Motor just not sure if it's the 275 HP or 315 HP. What is in the car: Tachometer with 5500 red line, 4-spd trans, 4.11 Posi rear.
Any help would be appreciated.

Paul
Reply
Old Jul 1, 2016 | 08:28 AM
  #2  
jim lockwood's Avatar
jim lockwood
Race Director
15 Year Member
Active Streak: 60 Days
Community Influencer
 
Joined: Feb 2007
Posts: 15,456
Likes: 8,917
From: northern california
C2 of Year Finalist (track prepared) 2019
Default

With the 5500 RPM redline, the car would have come with the 250 HP engine, a hold over from prior years.

The 275 and 315 engines, altho announced for '60, were not actually produced due to problems with the cylinder heads. Instead, FI engine choices were 250 HP and 290 HP.

Jim
Reply
Old Jul 1, 2016 | 06:21 PM
  #3  
FormerUser4.18.25's Avatar
FormerUser4.18.25
Thread Starter
Racer
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 414
Likes: 121
Default More info and pic

Well, we know the rear end is correct, dated right and AP code 4.11 Posi. Here's a pic of the gauges with tach. What engines could this tach possibly be connected to with a 4-spd and the 4.11 posi rear?

Reply
Old Jul 1, 2016 | 06:31 PM
  #4  
1snake's Avatar
1snake
Le Mans Master
 
Joined: Dec 2007
Posts: 8,000
Likes: 659
From: Puget Sound
Default

Engines with hydraulic cams came with the low red-line tach. That would be the 230HP, 245HP and 250HP.
I'm curious, how do you know for sure that it is an original FI car?

Last edited by 1snake; Jul 1, 2016 at 06:34 PM.
Reply
Old Jul 1, 2016 | 06:37 PM
  #5  
jim lockwood's Avatar
jim lockwood
Race Director
15 Year Member
Active Streak: 60 Days
Community Influencer
 
Joined: Feb 2007
Posts: 15,456
Likes: 8,917
From: northern california
C2 of Year Finalist (track prepared) 2019
Default

Originally Posted by fsc66
Well, we know the rear end is correct, dated right and AP code 4.11 Posi. Here's a pic of the gauges with tach. What engines could this tach possibly be connected to with a 4-spd and the 4.11 posi rear?
Transmission and differential have nothing to do with tach redline. As 1snake indicated, that redline is associated with hydraulic lifter engines, of which there were three possibilities in 1960.

What evidence is there that this car was originally fuel injected?

Jim
Reply
Old Jul 1, 2016 | 09:08 PM
  #6  
FormerUser4.18.25's Avatar
FormerUser4.18.25
Thread Starter
Racer
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 414
Likes: 121
Default Engine

It is possible that the car is not a Fuelie Car, still investigating. Is there a tell-tale way to prove if it is a Fuelie car, or is not a Fuelie Car?
Paul

Last edited by FormerUser4.18.25; Jul 1, 2016 at 09:09 PM.
Reply
Old Jul 2, 2016 | 07:41 AM
  #7  
plaidside's Avatar
plaidside
Le Mans Master
Photoriffic
Liked
Loved
Top Answer: 5
 
Joined: Apr 2000
Posts: 5,104
Likes: 1,362
From: New York New York
2024 C1 of the Year Finalist - Unmodified
2024 C2 of the Year Finalist - Unmodified
2023 C2 of the Year Finalist - Unmodified
2023 C1 of the Year Finalist - Unmodified
Default

I have a paper that will be helpful in identifying an FI 61.
PM me.
Joe
Reply
Old Jul 2, 2016 | 07:43 AM
  #8  
plaidside's Avatar
plaidside
Le Mans Master
Photoriffic
Liked
Loved
Top Answer: 5
 
Joined: Apr 2000
Posts: 5,104
Likes: 1,362
From: New York New York
2024 C1 of the Year Finalist - Unmodified
2024 C2 of the Year Finalist - Unmodified
2023 C2 of the Year Finalist - Unmodified
2023 C1 of the Year Finalist - Unmodified
Default

Jim,
I know the high HP cars have the oval hole in the firewall for the tach drive cable but do the low HP ones have it also, as the cable runs off the generator?
Joe
Reply
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 Jul 2, 2016 | 08:03 AM
  #9  
jim lockwood's Avatar
jim lockwood
Race Director
15 Year Member
Active Streak: 60 Days
Community Influencer
 
Joined: Feb 2007
Posts: 15,456
Likes: 8,917
From: northern california
C2 of Year Finalist (track prepared) 2019
Default

Originally Posted by plaidside
Jim,
I know the high HP cars have the oval hole in the firewall for the tach drive cable but do the low HP ones have it also, as the cable runs off the generator?
Joe
Joe, because the low HP fuelies used a generator-driven tach there would be no firewall hole, so no help there.

The most definitive clue (in my opinion) would be the presence of a metal nut plate at the top of the driver's side inner fender. The nut plate was used to mount the FI air cleaner.

If it's there, the car was a fuelie. If it isn't, either the car was NOT a fuelie or the fender was replaced.

Jim

Last edited by jim lockwood; Jul 2, 2016 at 08:05 AM.
Reply
Old Jul 2, 2016 | 08:15 AM
  #10  
wmf62's Avatar
wmf62
Race Director
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jun 2006
Posts: 17,901
Likes: 751
From: Inverness FL
St. Jude Donor '07
Default

and, possibly, if the hole in the radiator support for the FI aircleaner hose on the driver's side is open.
Bill
Reply
Old Jul 2, 2016 | 10:12 AM
  #11  
jim lockwood's Avatar
jim lockwood
Race Director
15 Year Member
Active Streak: 60 Days
Community Influencer
 
Joined: Feb 2007
Posts: 15,456
Likes: 8,917
From: northern california
C2 of Year Finalist (track prepared) 2019
Default

Originally Posted by wmf62
and, possibly, if the hole in the radiator support for the FI aircleaner hose on the driver's side is open.
Bill
On the 250 HP cars, that hole is blocked, same as if the car were carbureted.
Reply
Old Jul 2, 2016 | 10:57 AM
  #12  
wmf62's Avatar
wmf62
Race Director
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jun 2006
Posts: 17,901
Likes: 751
From: Inverness FL
St. Jude Donor '07
Default

Originally Posted by jim lockwood
On the 250 HP cars, that hole is blocked, same as if the car were carbureted.
I guess you're right... I've seen pictures of cars with just the aircleaner intake open to engine compartment ambient air; never made sense... (still doesn't...)

thanks
Bill
Reply
Old Jul 2, 2016 | 11:52 AM
  #13  
jim lockwood's Avatar
jim lockwood
Race Director
15 Year Member
Active Streak: 60 Days
Community Influencer
 
Joined: Feb 2007
Posts: 15,456
Likes: 8,917
From: northern california
C2 of Year Finalist (track prepared) 2019
Default

Originally Posted by wmf62
I guess you're right... I've seen pictures of cars with just the aircleaner intake open to engine compartment ambient air; never made sense... (still doesn't...)

thanks
Bill
Nope, it doesn't make sense but that's the way it was done.

As a practical matter, if I had a 250 HP fuelie, I'd go ahead and install the forward fresh air hose. Getting cooler air to the FI unit, as you well know, is a Real Good Thing.

Jim
Reply
Old Jul 2, 2016 | 12:22 PM
  #14  
wmf62's Avatar
wmf62
Race Director
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jun 2006
Posts: 17,901
Likes: 751
From: Inverness FL
St. Jude Donor '07
Default

Originally Posted by jim lockwood
Nope, it doesn't make sense but that's the way it was done.

As a practical matter, if I had a 250 HP fuelie, I'd go ahead and install the forward fresh air hose. Getting cooler air to the FI unit, as you well know, is a Real Good Thing.

Jim


Bill
Reply

Get notified of new replies

To Need help to identify engine





All times are GMT -4. The time now is 11:43 PM.

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