Early 1958 430 rebuild

Show us your MEL engine build up photo and text documentary.
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RocketdyneF1
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Early 1958 430 rebuild

Post by RocketdyneF1 » Sun 14. May 2017, 12:08

I´ve finally started to rebuild my early 1958 430 MEL engine. Its out of a 58 model Lincoln buildt in October 1957. Since I dont need it quickly done because I only have the engine (I dont have the Lincoln, or any car for this engine), and its the first time I try to rebuild an engine, its probably gonna take a while until its running again. I plan to restore it to stock specs, with 2 exceptions. Firstly I upgraded the stock distributor with a Pertronix transistor, and secondly the stock 4-barrell intake and carb will be replaced by a correct reproduction of the factory 1958 Super Marauder Tri Power system. I´ve already modified the distributor and bought the tri power system, and yes, it was expensive ;)
Here are some pics of it during disassembly.
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The early 1958 blocks, like mine, have a slightly lower deck height than the later 1958 to 1960 blocks (10.462" vs 10.482") and thus, the early engines have a higher compression ratio (10.5 : 1 vs 10.0 : 1).
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The early 1958 heads are also slightly different than the later 1958 to 1960 heads. The early ones have very large 2.80" x 1.30" intake ports and 2.15" intake valves, the later ones have still large 2.70" x 1.30" intake ports and 2.09" intake valves. But there are no differences on the exhaust side, as the port size stayed at 1,90" x 1,23" and the valve size stayed at 1,78".
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I´ll update this post with more photos as the work continues.
Last edited by RocketdyneF1 on Wed 21. Jun 2017, 09:22, edited 2 times in total.
1977 Pontiac Firebird Trans Am
1958 430 MEL V8 without car

RocketdyneF1
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Early 1958 430 rebuild

Post by RocketdyneF1 » Mon 15. May 2017, 08:42

Here are some more pics.
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The very cool Tri Power system
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And the modified distributor
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1977 Pontiac Firebird Trans Am
1958 430 MEL V8 without car

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Theo
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Re: Early 1958 430 rebuild

Post by Theo » Mon 7. Aug 2017, 01:01

Great shots. Thank you for sharing.
Best regards
Theo
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RocketdyneF1
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Early 1958 430 rebuild

Post by RocketdyneF1 » Thu 24. Aug 2017, 10:41

After some delay I´ve finally started to reassemble the engine. The crankshafts main bearings and rod bearings were turned down 0.020" each and new main; rod and cam bearings were installed.
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Fortunately the cylinders did not have to be bored over, so i could reuse the original pistons. I am very happy about that, because the only pistons commonly available for this engine are flat tops wich seriously lower the compression ratio, and thats really not what i have in mind. So I balanced all stock rods/pistons. I weighted each piston including rings, piston pin, rod and rod bolts, but without rod bearings. Ford actually balanced this engine pretty well when they buildt it some 60 years ago, because 6 out of 8 rods/pistons weighted exactly 1876 grams, one weighted 1878 and another one 1871 grams. So I polished all 8 stock pistons, brought them all down to 1871 grams, put on a new set of rings and put them back into the block.
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1977 Pontiac Firebird Trans Am
1958 430 MEL V8 without car

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