Question about Buick Riviera

1 Answer

I need the timming specs in my 1966 buick riviera its got a 425 nailhead single 4.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 834 Answers

The spark plug type is 44S and the gap is .032. The ignition points should be set at a 30 degree dwell angle or a .016 point gap. The ignition timing should be set at 2-1/2 to 3 degrees before top dead center, and the engine compression should be 170 psi. Let me know if you require a firing order diagram or any further assistance.

Posted on Aug 24, 2010

Testimonial: "awsome!! thanks for the info bra!!! its much appreciated."


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Need firing order dist rotation cyl 1 location 66 buick riviera 425 ?

1846572 If it was me-I would look at the distributor like hands on a clock. Remembering that there is only (8) hands though. It turns counter clockwise so lets not forget that .

Apr 21, 2015 | Buick Cars & Trucks

1 Answer

I need timming spec. for 305, 4 barrel pontiac trans-am 87'

you should try one of the trans am web site the members would be able to help you or

Jul 13, 2014 | 1974 Buick Electra

1 Answer

Vacuum diagram 1973 buick riviera 455 4 bbl ca a/t a/c

Your wish is my command. here is '74 Riviera 455

Jul 07, 2014 | Buick Riviera Cars & Trucks

1 Answer

Identifying code for 1963 buick v8

what are you looking for ? the motor #, the model #, ? the location of the #"s is on the front top of the cylinder head just in front of the valve cover on most models. this may help JL=300 std motor, JP=300 HP motor, JT=401 motor, JW=425 motor, JX=425 2Bbl motor. you can look up Motors or Chiltons manuals to find out more.

May 08, 2014 | 1963 Buick Riviera

1 Answer

1990 buick riviera cranks but wont start

Check your fuel pressure; if it is within specs, have a muffler shop test your back-pressure from your catalytic converter. There are other things that can cause strange problems like this but it is a process of elimination.

Mar 12, 2014 | 1990 Buick Riviera

1 Answer

Im looking for a spark plug wirng diagram for a 1966 corette 427

1966 - 1969 with 4 Barrel Carb (L36)
(Low Compression Model)
Max Brake Horsepower - 390 @ 5200 rpm
Max Torque - 470 @ 3600 rpm
Stroke - 3.76
Bore - 4.251
Compression - 10.25
Firing Order - 18436572

1966 with 4 Barrel Carb (L72)
(High Compression Model)
Max Brake Horsepower - 425 @ 5600 rpm
Max Torque - 460 @ 4000 rpm
Stroke - 3.76
Bore - 4.251
Compression - 11.0
Firing Order - 18436572


283, 327, 396, 409 and 427 CID Engine 1965-1966
Firing Order 1-8-4-3-6-5-7-2


350 CID Engine 1969-1974 Corvette, 427 CID Engine 1969 Corvette
Firing Order 1-8-4-3-6-5-7-2

Hope this helps (remember to rate this answer)

Jun 15, 2011 | Chevrolet Corvette Cars & Trucks

1 Answer

Need firing order and location of #1 cylinder. 1968 Buick GS400 Not a nailhead engine.

All Buick V-8's use the same firing order in 1968 and it is 1-8-4-3-6-5-7-2. The odd pistons are on driver's side front to back and even on the passenger. The distributor turns clockwise and #1 is at 8 o'clock on the cap. Plugs are 44TS and gapped at .030. Points are gapped at .016 and the dwell angle is 30. Timing should be TDC. If you have A/C set your curb idle with the A/C switch in the "Full On' position and the car in Drive. Idle is 600RPM for automatic and 700 RPM for standard. Hope this helps.

Apr 28, 2011 | Buick Skylark Cars & Trucks

1 Answer

How many yards of fabric does it take to redo the whole dash board on a 1983 Buick riviera

You have to physically measure it. Buick doesn't have specs on square yards of fabric for anything.

Mar 18, 2011 | 1983 Buick Riviera

2 Answers

How do i drain a transmission (buick 400) on a nailhead 1966 buick riviera

You have to remove the tranny pan in order to drain it and to change your filter. Why no manufacturer has ever incorporated a drain plug for the tranny.....I'll never know! Here's a diagram to help you out.
(Copy & paste entire link into your address bar)

Nov 11, 2009 | Buick Riviera Cars & Trucks

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

185 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

76070 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8266 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides