I've reviewed the many past threads in the archives on this subject and still need help.
Car is #407065, mid March, left/front spark plug heat shield and chrome cover.
AIM page #187 on oil filter, dip stick, etc. shows this heat shield horizontally flat.
page #192 shows the heat shield in an upside down V shape and part #3919807. Date of drawing is not clear.
page near rear of book is a redraw design dated 3-6-70 w/the heat shield flat and the chrome covers only on the back.
A previous owner had the car restored and it had the chrome cover under the #3919807 heat shield while the other 3 have the chrome cover on top. There has been no discussion about this in past NCRS judging events. #3919807 is the heat shield with the hole on the top for the temp connection and past archives state that it is impossible to put the chrome cover over this type of heat shield and after many, many hours, I agree. It seems GM #3919807 is always referred to as "early 1970 Left/Front heat shield" in all references. I think it's meant for 350's without chrome covers on front.
I know Judging manual states the change to only back plugs have chrome covers after about Ser # 14,000 and I have the box type dist/coil cover. I'm thinking the Restorer purchased a kit that had the wrong heat cover for this application and I should install a flat heat shield.
Can some of you with original early '70 small blocks give me advice as to your car's heat shield?
Thanks, Donn
Car is #407065, mid March, left/front spark plug heat shield and chrome cover.
AIM page #187 on oil filter, dip stick, etc. shows this heat shield horizontally flat.
page #192 shows the heat shield in an upside down V shape and part #3919807. Date of drawing is not clear.
page near rear of book is a redraw design dated 3-6-70 w/the heat shield flat and the chrome covers only on the back.
A previous owner had the car restored and it had the chrome cover under the #3919807 heat shield while the other 3 have the chrome cover on top. There has been no discussion about this in past NCRS judging events. #3919807 is the heat shield with the hole on the top for the temp connection and past archives state that it is impossible to put the chrome cover over this type of heat shield and after many, many hours, I agree. It seems GM #3919807 is always referred to as "early 1970 Left/Front heat shield" in all references. I think it's meant for 350's without chrome covers on front.
I know Judging manual states the change to only back plugs have chrome covers after about Ser # 14,000 and I have the box type dist/coil cover. I'm thinking the Restorer purchased a kit that had the wrong heat cover for this application and I should install a flat heat shield.
Can some of you with original early '70 small blocks give me advice as to your car's heat shield?
Thanks, Donn
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