pontiac 400 vs olds 403

The 455, now down to 215 hp, made its last appearance in the ’76 TA, to be supplanted by the smaller-bore 400 Pontiac as well as the Olds 403 in CA, where the emission standards were even tighter. Brand New. But for high horsepower or stroker applications the Pontiac 400 … Shaun H-A. Oh, and the Can Am came with a TH 400 not the TH 350, when equipped with the Pontiac 400 motor, which most of them had. Buy It Now. Watch; 1969 Pontiac GTO master engine bolt kit 400-4V engine. 5 Answers. This version of the Pontiac V8 engine was used in the GTO, Firebird, and the Trans-Am Firebird. Answer Save. Edelbrock 61599 - Edelbrock Performer Cylinder Heads. The TH 400 had a slightly steeper 1st gear than the TH350. 11-15-02 05:15 AM - Post# 135908 In response to his big claim to fame is 13.6's with the 403. I think the pontiac sounds better even though its a restrictive Exhaust Running stock Exhaust manifolds I ported. The Pontiac 400 has a bore of 4.12 and a stroke of 3.75. To celebrate the workhorse Pontiac V-8 (sorry Olds 403, today’s not your day) we’ll highlight some of our favorite applications of the staple muscle car engine. Brand New. Firebirds … 67 results for 403 olds engine Save 403 olds engine to get e-mail alerts and updates on your eBay Feed. Whether a buyer chose the Pontiac 400/four-speed or the Olds 403/automatic, it still made for the first Trans Am to have a base price north of $10,000. It's a 6.6L Oldsmobile 403 block/455 head hybrid destined for the engine compartment of a Smokey and the Bandit Pontiac Trans Am. It was sort of meant to replace the previous use of big block engines in the BOP line. 1. $300.00. Lv 7. Unfollow 403 olds engine to stop getting updates on your eBay Feed. Which one should I put into my 77 trans am in order to get the best performance ? Filter Results Filter by Vehicle Individual Parts; Part Groups; Results 1 - 15 of 15 25 Records Per Page Default Sort . As a result, it has a bore of 4.351 inches (110.5 mm), giving it one of the widest bores of any factory small-block V8. The Olds 403 was designed to be a big block in a small-block package. Going by the vin# my trans am came with the 403 but I was told its got a olds 350 from the guy I bought it from and some one else told me its a 403. going by pictures the 350 and 403 … Case in point is this Oldsmobile 403. It's a great mule, too. Edelbrock 61599 - Edelbrock Performer Cylinder Heads. Free returns. Also, little power. or Best Offer +$47.25 shipping. Free shipping. The calendar on the wall shows it’s 6/6—close enough to Pontiac’s iconic “6.6 Liter” badging on its Trans Am shaker hood scoops to have us thinking about everything Pontiac 400. Watch; 1968 Pontiac GTO master engine bolt kit 400-4V engine. Olds 455 or pontiac 400 Hey guys, you might have seen me in here before going on about a olds 403 but today I have a new question. 1979 Trans Am Olds 403 Engine Choke Tubes 2pc, OEM 1979 Trans Am Olds 403 Engine Choke Tubes 2pc, Stainless 1979 Trans Am Olds 403 Engine Choke Tube Heater Assembly 1979 Trans Am Olds 403 Engine Choke Tube Heater Assembly Intake Manifold Gasket Price $20.00 $24.00 $23.00 $6.75 Inline tube has these kits for your 403 A 4 speed manual was never offered at all. This is going to be strictly a summer car since we have salty winters here in Canada. In 1979 I bought another TA because the first one was never in the garage if the wife got there first. By then not much power. Favorite Answer. Find solutions to your pontiac 8 firing order question. Worth noting the W72 400 was standard in the 1977 Pontiac Can Am and optional in the 1977-1979 Firebird Formula and Trans Am. NHRA rated the stock 1977-1979 W72 400 at 260 horsepower. The 66-67 W-30's even used that .474 lift / 308 duration cam. I have a '81 trans am with a TH350 and a 3.73 posi. Great scores, and well done,,, I too race Olds's on Oval track using Olds 350 and 403 v8s,,,and on a 1/4 mile ashplt oval,,,i beat alot of chvys. Get free Pontiac-built , , , , V8 Engine Firing Order: Firebird firing order diagram. This car had an Olds 403. Turbo 400 Chevy Pontiac Olds stright cut plantary set very hard to find. but most folks do not get such good deals and most folks have to send the engine out to be rebuilt,,,and with scrap iron pirces being so high lots of guys have sent them old engines to the junk man. I gotta check on my lead to the 400 short block, but I haven't been real convinced to try the 403. the big mod's he claims are 350 heads for better compression, and intake. HoningPlates.com by BHJ Products : Buick, Olds, Pontiac - Honing Torque Plates Cylinder Head Torque Plates Accessories Honing Plates, Cylinder Head Plates, Torque Plates, Honing Torque Plates, Cylinder Head Torque Plates, 1966 Pontiac GTO vs.1968 Hurst Olds 455 Drag Race: Video We are currently looking for experienced automotive journalists and editors to join our team. Use Edelbrock's matched cam for the Performer intake, installed straight up. Pontiac's 400 The 400 ci was Pontiac's most popular V8 during the glory years, and a number of different blocks were produced in that time. Your pathetic 7.9:1 compression ratio is holding you back, as is the stock weenie emissions cam. The 403 eventually replaced all the larger Pontiac, Buick, and Olds V-8’s and became GM’s defacto ‘big block’, much as the aforementioned Ford 400 had become. The lower torque was mostly due to a larger bore and smaller stroke than the 400 (4.351 x 3.385 {403} vs. 4.12 x 3.75 {400}). With the EPA’s C.A.F.E. Some were produced with the Olds 403 motor for sale in California which did come with the TH350. Re: Which is the Better Engine - Pontiac 400 or Olds 403 « Reply #41 on: March 30, 2011, 09:37:39 AM » Who cares what motors in … Pretty common in B, C, and Pontiac F bodies ’77-’79. By that time, Pontiac V8s had catalytic convertors and other power-robbing economy and emissions changes. In 1973, the Ventura got the Pontiac 350 instead of the 307; in 1975, it got an Olds-built 260. The Pontiac 400 6.6 Liter engine was first introduced in 1967. Relevance. Otherwise, Pontiac stuck with the 350-, 400- and 455-cid V8s with up to 300 net horsepower (a new rating system). The Olds engine your thinking of is the 65-67 400's. Get the carb and distributor blueprinted and performance curved. Re: 400 SBC vs. 403 SBO??? Chevy 350 vs Pontiac 400 Exhaust sound. Horsepower figures for the 403 were 185@3600 rpm, good for a 5 hp bump over the Pontiac 400, yet netted five less Lb/ft of torque (320) at a peakier 2200 rpm. Pre-Owned. General Motors used the Olds 403 as a ‘corporate engine’ across its line of brands. $155.99. standards beginning to take effect and ever tightening federal emissions control standards, GM forced Pontiac to cancel the W72 400. The blocks of all Pontiac V-8s from the 287 to the 455 are the same size and very close to the same weight, which can make it more difficult to identify the 11 different engine displacements produced from 1955–79. The Pontiac 455 has a bore of 4.15 and a stroke of 4.21. or firing engine order for a pontiac Pontiac V8. 27.08.2018 27.08.2018 4 Comments on Pontiac 400 Firing Order Diagram. Pontiac installed a variety of engines in Firebird and Trans Am models over their 11-year production run: everything from the anemic Chevrolet inline 6-cylinder all the way up to the powerhouse 400 Ram Air III and IV as well as 455 Super Duty engines. 1st photo places where codes are usually found in a 400-455 engines.... 2nd photo 403-455 olds engines (1)400 engine (2)403 engine Most of those cars in that year (6.6's) came with an Olds 403. pontiac 400 vs 455 vs chevy 350.? Make $60k-$80k per year doing what you love. The Olds engine was … PONTIAC 6.6L/400 Cylinder Heads. If you've got a real Pontiac 400 (not the Olds 403- they used these in some Trans Ams of that vintage as well), Then do something different and build what you got- real Pontiac motors in Pontiac cars are cool in my book. Oldsmobile discontinued the 403 after the 1979 model year. Output was 185 hp (138 kW) and 320 lb⋅ft (430 N⋅m). I am looking for a street and strip build. $161.99. The 400 was inspired by the Pontiac 389 V8 and proved to be the last Pontiac engine with closed chambered heads. Buy It Now. It was also used in other applications like motor homes, boats and some industrial applications. The 403 was made from 1977 to 1979 and used across the Buick, Olds, Pontiac and Cadillac vehicle lines. Pontiac blocks are interesting power plants that are often misunderstood and improperly identified by sellers and buyers alike. The Olds 403 was used by Buick and Pontiac in addition to Oldsmobile until its discontinuation after 1979. 9 years ago. The 403-ci Oldsmobile engines were slotted inside these cars also. Uniquely in the 1977 Toronado, the 403 engine was fitted with a crank triggered ignition system. Throw in the required WS6 suspension/four-wheel disc brake package, and together they still added less than $1,000 to the $6,699 base MSRP. When Pontiac exhausted their supply of the 400 power plants built in 1978, they filled the remaining need using the Oldsmobile 403. They all used flat top pistons and had the same A, B, C, heads that were used on all engines during those years. It is my first project/ car. Find a pair of #5,6 or 7 small block Olds heads, put big valves in them, ream the head bolt holes to accept the 403's 1/2" head bolts, then do a little port matching and cleanup. We had long heard that the automatic Olds was a stone compared to the four-speed Pontiac-powered version, and the extra 35hp (plus a more aggressive rear gear) would seem to confirm that. Trans Ams came equipped with a standard 403-cu in rated for 185hp, but it was the more powerful Pontiac-built 220hp 400 option, mandating a four-speed manual, that garnered attention. I need the diagram for a distributor cap and plugs. In 1978 I bought a TA with a Pontiac 400. Despite the preference of most Firebird and T/A owners to have the Pontiac 400 over the Olds 403, it remains a viable choice or alternative, since the Olds 403 can be made to make decent power.

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