Thanks guys, Those information was really helpful, I always asked myself why compressor pulley must be different? now I have the answer!
I must go for 6550819 my engine is stage 1 also I changed...
Type: Posts; User: Houtan
Thanks guys, Those information was really helpful, I always asked myself why compressor pulley must be different? now I have the answer!
I must go for 6550819 my engine is stage 1 also I changed...
I have only 1975 Service manual, on this manual Frigidaire A6 for 455 engines have Super Heat sensor on them, But on 1975 we don`t have any stage 1 engine anymore, I remember in some years stage 1...
Hi everyone,
I have question about about original 1974 Century 455 GS stage 1 original AC compressor, when I bought the car there was no AC compressor and it`s wiring on the car. Please help me...
Thanks Todd for the catalog pages, I found today a 90Ah battery very high CCA. I don`t know what group size it is (11.88x5x7.87 inches) but my GS is 1974 and it fits really nice in there. This was...
Hi everyone,
Does anyone knows what was ampere rate of Delco Energizer R89S and C89? I want to change my battery and want to chose the right battery, In shop manual R89S is standard and C89...
Any thik big clutch fans are heavy duty or I must check the part numbers? I have both of them one like the original shown on original manual and another thiker one that I bought years ago for my...
Thanks Larry,
I will install original 20" 5 blade with a new clutch. Hope they work at best.
Thanks Larry, My GS is 1974, In fact Century Gran Sport 455 Stage 1, I haven`t exact 1974 manual but in 1975 manual that I have 455 engine with A/C had 20" 5 blade clutch drive fans and my car have...
Hi everyone,
I have Non clutch 7 blade fan and 7 and 5 clutch driving fans, I guess original fan for 455 with AC was 5 blade clutch drive fans, now my question is witch system is better for 455...
Hi everyone,
In restoration process now is time for tires, please let me know what was the original 1974 Buick Century Gran sport stage1 tire size from witch tire brand and what is closest new...
I send the engine block and crank to another machine shop, we torque them to 115 lb ft and our clearance in each 5 caps was different. In fact the caps on 455 only will seat correctly in their...
Hi everyone,
In Buick service manual torque for main bearing caps for 455 BBB is 115 lb ft. I send my engine to machine shop and after they done I find out that they test the clearance with lower...
Hi,
I need your opinion about using a 800 cfm Thermoquad from 440 Magnum engine on my 455 stage 1.
Are they as good as 800 cfm Quadrahet carburetors on any RPM?
Thank you all, your information was really helpful.
at the end I have 2 candidates:
Howard cams 550101-12 lift: 0.448, 0.474 Duration: 205. 215 Lobe separation: 112 RPM 1000-5000
Howard cams 550121-12 lift: 0.474, 0.496 Duration: 215. 225 Lobe...
Thanks for your replays,
I want to change my camshaft because my camshaft now on the engine is stock 1974 stage 1, what GM installed on the engine on 1974!! The car isn`t run many miles but when I...
Hi everyone,
Anyone can help me find stock 455 stage 1 camshaft specs?
I need to know what was stock stage 1 camshafts lifts, lobe separation and durations at 050
I will change pistons to KB 1730H for better specs,
But I want to use stock 455 rockers and pushrods and don`t know if with this system my pushrods size will be fine or not?
Also I don`t know...
Hi everyone,
Please inform me is it possible to make some machine shops on 1975 455 cylinder heads, taking some layers off, for decreasing combustion chamber from 78cc to 69cc like 1970 455...
Hi everyone,
I have found very good condition heads casting number 1377979 on 430 engine, on BBB casting numbers : https://www.teambuick.com/forums/view.php?pg=casting_numbers_big_block , says...
Thanks Todd, These files are really good and helpful.
Thanks for your diagrams, Those are what I want, If it is possible can you please send them with better quality (resolution)?
Thanks, It is very helpful.
Hi everyone,
I need wiring diagrams for my 1974 Century GS 455, Please anybody can help me with this?