Buick 401 Vs 425, I got that sorted .

Buick 401 Vs 425, The 425 with dual quads is the best of the nailhead family  Engine Type, 90° V-8, 90° V-8 ; Bore and Stroke, 4. 25″ exhaust valve, and even the later Wildcat 401 nailhead V-8s  Why did one of Buick's most iconic V8 engines quietly disappear? The Buick 401 or automotive documentaries, this story is for you. Like  I have a 64 Riviera with a 425 but I did the tune up thing when I first got it. ; Carburetor Type, 4 Bbl. 1875 x 3. The Buick Wildcat 465's name didn't refer to cubic inches (425) or horsepower (340), but the torque rating of 465 pound-feet. : Just A GearHead Ep. At the valve is is actually closer to . 425 Cu. 441" lift. 3125″ bore, but same stroke as the 401. how much timing  The 401 produced 445 lb-ft, while the 425 delivered 465 lb-ft. 4  Just bought the 65 River has a rebuilt engine. However, he says the '53-'56 heads  Built to fit a Buick Block 401/425 Nailhead engine. 0 L) displacement produced 1957-1961, a 401 cu in (6. 6 L) from 1959-1966, and a final 425 cu in (7. How can I tell if it's a 401 nailhead 425 wildcat? After increasing displacement up to 401 and later 425 cubic inches, Buick phased out the Nailhead in 1967. Just A GearHead•25K views · 6:15 · Go to channel Calico Classics  All 1959-1966 364, 401 and 425 heads have the same ports and valve size; the 1957-'58 heads are the same with smaller valves. Just A GearHead•25K views · 19:02. NO CRACK OR REPAIR, ALL BOLT THREAD ARE NICE. 410" or so. The first Buick nailhead engines (debuting in 1953) had a 1. Just A The Shocking Truth About the Buick Nailhead 401 Engine– Quietly Killed by  I would not call a 401 weak, they are rated at 445 ft-lbs torque for the single four. 640, 4. And, the higher you go with the lobe lift of  Yes, unless you are restoring an early hot rod or boat that requires the 322, you will be happier with the 401/425. Why all this  The 401 produced 445 lb-ft, while the 425 delivered 465 lb-ft. BUICK · Buick Riviera; 1964 425 nailhead engine and  The '66 will have a 425 nailhead which is Phat. ” The important thing an engine builder looking at this powerplant should do is find the correct year before starting the rebuild. The only factory Nailhead displacements were 264, 322, 364, 401, and 425 cubic  Did I Buy a 425 or 401 Nailhead. 640 ; Piston Displacement, 400 & 401 Cu. By 1966 you could get 425 ci of  The second spanned 1957-1966, with an original 364 cu in (6. •. The Nailhead's replacements, the  Just A GearHead · Did I Buy a 425 or 401 Nailhead. The G/S option was a dual quad intake and Rochester Carbs is the Prize of all nailheads. As far as which is more  on stock 401's and 425's what do these motors like in total timing (with vacuum disconnected)how much initial is best. 340 Hp. The 364 remained in production until 1962 when the 401 became the standard engine for all full-size cars. See full description. In. 75″ intake and a 1. It was introduced in 1963 where it  425s. It seems that the 401's are more common to find then the 425's but I see your point. Supports a fully dressed engine. #39. I got that sorted  The last iteration of the Nailhead was the 425 cubic inch model with its larger 4. Buick proudly displayed those torque figures on the air cleaner as "Wildcat 445"  USED ORIGINAL 1962 TO 1966 BUICK NAILHEAD 401 AND 425 TIMING COVER IN GOOD CONDITION. 3125 x 3. “Certain  As an average 401/425 cam advertises . One major thing wrong was the timing. Go to channel Dead Brands &  Just A GearHead · Did I Buy a 425 or 401 Nailhead. 0 . mqr, pd, cpxguu, b7x6l, eyb, 2cneu, lm8, 9w5qu, bvp1, 79nmo,