Vortec 5.7 block vs. standard 5.7 block
#21
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Join Date: Oct 2005
Location: Woodstock Ontario Canada
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The Vortec 350's balancer is 1/16" narrower to accomodate the reluctor wheel that the crank sensor reads. Teh crank sensor is housed in the plastic front timing cover.
All Vortec 350 engines are roller cammed. 192°/197° at 0.50" lift with .413"/.427" lift with 1.5:1 rockers on a 111 LSA.
teh Vortec blocks have a different metallurgy and no mechanical fuel pump provision.
peace
Hog
All Vortec 350 engines are roller cammed. 192°/197° at 0.50" lift with .413"/.427" lift with 1.5:1 rockers on a 111 LSA.
teh Vortec blocks have a different metallurgy and no mechanical fuel pump provision.
peace
Hog
#24
well im not dead set on going with the 1 pc. I cant seem to find any around here actually. But if the 400ci blocks will work (brackets, sensors, etc.) then i might go that route. 406 or 424 or something. i dont know if they made those 400 blocks after '87, so i dont know if they will work.
thanks to you guys too. You guys know your ****.
thanks to you guys too. You guys know your ****.
#25
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iTrader: (11)
The 400 blocks were made pre-86. The sensors will work and brackets should be fine, you might come into one or two problems but the guys over on another site got through it fine using the serpentine system. You will have to drill steam holes for your cylinders heads so that it won't crack.
#27
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Here is a website, go down to the bottom of the page and you will see a set of cylinder heads, read the caption under the pic.
http://www.carcraft.com/techarticles/400_small_block/
http://www.carcraft.com/techarticles/400_small_block/
#28
also, the vortech motors, are all roller cam, and the older non vortech are flat tappet engines, also, the lifter bore between older, pre '87, 87-95, 95 up, as well as vortech and non vortech, they all have different lifter bore sizes.
#29
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iTrader: (11)
Originally Posted by Mac5005
also, the vortech motors, are all roller cam, and the older non vortech are flat tappet engines, also, the lifter bore between older, pre '87, 87-95, 95 up, as well as vortech and non vortech, they all have different lifter bore sizes.
#30
so the '87 and up 350 blocks are hyd. roller right. But none of the 400 blocks are. I really would rather not have to retro fit anthing, so i'll just go with a 350 block instead of the 400 if i'm understanding you guys correctly.