I don't run super tall valve covers, but mine are taller than those pictured above, the result is about the same clearance shown above. I have things 2.25 forward.
I don't run super tall valve covers, but mine are taller than those pictured above, the result is about the same clearance shown above. I have things 2.25 forward.
I've read a lot of opinions on engine placement, as I will be installing a L88 blown I'm very interested in all you guy's that have all already did this or are working on it now. I will be using a set of M/T 427 valve covers, I will also be using the original frame. I love to be able to upgrade to C4 but the$$ is going to be spent on sheet metal. What about the dist. clearance? CN you are right about seating the engine in the compartment for the final location and checking clearance.
At 1.5 to 2.25 dist clearance on firewall is a non issue. My access is tight at 2.25 forward due to tunnel ram carbs and linkage, not firewall.
My custom firewall is only set back 2.5" and the distributor clears the firewall by about 1/2". The stock firewall is set back 4" in that area. I do have to remove the upper intake to remove the distributor. These pics show the distributor clearance with the engine 1.5" forward. At a 4 degree engine angle the clearance would be greater.
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56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension
Other vehicles:
56 Chevy 2-door BelAir sedan
56 Chevy 210 4-door sedan
57 Chevy 210 4-door sedan
1962 327/340HP Corvette
1961 Willys CJ3B Jeep
2001 Porsche Boxster S
2003 Chevy Silverado 2500 HD Duramax
2019 GMC Sierra Denali Duramax
CN what headers are you using ? I've been a hooker man on all my cars.
bigblock, those headers are made by Earle Williams Classic Chassis Works.
http://www.williamsclassic.com/#!__p...vstc10=headers
I tried a couple of sets of Hooker Competition headers and didnt' like them. Turns out these tri5 headers work fine with my C4 setup. I did modify the #5 and #7 tubes mostly for looks.
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I also cut off the 3-bolt header flanges and welded on v-band clamps.
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Last edited by chevynut; 02-26-2018 at 11:05 AM.
56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension
Other vehicles:
56 Chevy 2-door BelAir sedan
56 Chevy 210 4-door sedan
57 Chevy 210 4-door sedan
1962 327/340HP Corvette
1961 Willys CJ3B Jeep
2001 Porsche Boxster S
2003 Chevy Silverado 2500 HD Duramax
2019 GMC Sierra Denali Duramax
Having installed a Roots blown engine before (in another make/model), I agree with the others, the only way to know what clearances you have (and don't have) is to put the engine AND trans in there, with the headers on. You are going to want that engine/trans set as far back as possible, because your space for an electric cooling fan setup will be taken up by the 3" belt drive. I predict you will have to build a custom radiator support with a kickout towards the front several inches in order to make room for an electric fan. OR, build a four sided sheet metal spacer between the radiator support and the back of the radiator, and mount the electric fan(s) inside the spacer. Please don't be tempted to just mount the electric fan(s) in front of the radiator, as you'll lose about 20% efficiency. You will need all the cooling you can get with a blown big block.
Last edited by Bitchin'57; 02-26-2018 at 11:59 PM.
Dave, from the old neighborhood in Jersey!
At 2.25 forward, with am l-88 short water pump I have room for a 70 GMC pickup with AC fan and with a custom shroud I run 170 on 100 degree days. One of the coolest rung cars I have ever owned.
CN,B57,and markm, thanks for your reply, and input, I all most forgot about the 3in belt. Thanks
CN,B57,and markm, thanks for your reply, and input, I all most forgot about the 3in belt. Thanks CN that's some nice work!!