Topic: My new toy 69 Mako? Can someone help me identify?
in Forum: C3 Special Edition Vettes
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Corvette427,
I can't seem to locate any of those letters, the only one i saw was a P that was on the driver side next to the casting #s (3955270, it is a 270 instead of a 210).
Tom
I can't seem to locate any of those letters, the only one i saw was a P that was on the driver side next to the casting #s (3955270, it is a 270 instead of a 210).
Tom
69' 427/435 4-speed. #matching LR (Tri-power).
|IMG|http://home.tampabay.rr.com/tommyab/images/personal/lrear.jpg|/IMG|
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UPDATE: Ok i am taking the heads off today. The markings on the heads are as follows:
3964291
A19 70
GM1T
It seems to have a head gasket problem but i'll know more later on this afternoon.
Tom
3964291
A19 70
GM1T
It seems to have a head gasket problem but i'll know more later on this afternoon.
Tom
69' 427/435 4-speed. #matching LR (Tri-power).
|IMG|http://home.tampabay.rr.com/tommyab/images/personal/lrear.jpg|/IMG|
Update....
It had a blown head gasket and one of the heads is cracked. My friend said they should be able to fix it so tomorrow they go to the machine shop. I filled the cylinders up with oil to see if they will leak down(my friend said this is an easy way to see if the rings have a problem), i should know in the morning. I also learned that is has roller rocker arms but NOT roller lifters and i suspect the cam isn't a roller either :( so sometime tomorrow or this week i will pop into A&E and see what i should do about that, while i'm there i may look into a different intake manifold as the one thats on it is too high for my hood :(
More tomorrow......
Tom
PS. Also of note my friend has seen a shizit load of remarked blocks, when he inspected mine he was almost 100% postitive that mine was NOT a remark :)
|UPDATED|7/5/2004 3:00:23 PM (AZT)|/UPDATED|
It had a blown head gasket and one of the heads is cracked. My friend said they should be able to fix it so tomorrow they go to the machine shop. I filled the cylinders up with oil to see if they will leak down(my friend said this is an easy way to see if the rings have a problem), i should know in the morning. I also learned that is has roller rocker arms but NOT roller lifters and i suspect the cam isn't a roller either :( so sometime tomorrow or this week i will pop into A&E and see what i should do about that, while i'm there i may look into a different intake manifold as the one thats on it is too high for my hood :(
More tomorrow......
Tom
PS. Also of note my friend has seen a shizit load of remarked blocks, when he inspected mine he was almost 100% postitive that mine was NOT a remark :)
|UPDATED|7/5/2004 3:00:23 PM (AZT)|/UPDATED|
69' 427/435 4-speed. #matching LR (Tri-power).
|IMG|http://home.tampabay.rr.com/tommyab/images/personal/lrear.jpg|/IMG|
hey tom, you can have roller rockers, without a roller cam, but if you have a roller cam you must use roller lifters. As for the numbers on the heads.3964291 are 69-70 rectangular port heads A1970 IS JANUARY 19 1970.GMIT, I can only guess the GM means general motors the IT I don't know. 

Thx Jack :)
Update: The cylinders didn't leak down so it looks like i have good rings! The machine shop said the worst case i'm looking at is $400.00 to do both of the heads (thats with new hardened seats). I got estimates from A&E on the parts i'm going to need to put it back together (about $250.00) so all told i don't think thats too expensive considering the heads will be done right.
More later....
Tom
Update: The cylinders didn't leak down so it looks like i have good rings! The machine shop said the worst case i'm looking at is $400.00 to do both of the heads (thats with new hardened seats). I got estimates from A&E on the parts i'm going to need to put it back together (about $250.00) so all told i don't think thats too expensive considering the heads will be done right.
More later....
Tom
69' 427/435 4-speed. #matching LR (Tri-power).
|IMG|http://home.tampabay.rr.com/tommyab/images/personal/lrear.jpg|/IMG|
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Frederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
Congrats on the good fortune...hope it's not premature. No question you'll enjoy that beast. If it's anything like my '69 427/435, it's barely civilized (mine has an L88 cam instead of the stock grind). People always look at a Corvette simply because it's a Vette, but I've noticed when driving this beast their eyes always tend to stare at the 4-2-7 on the hood.
The way people look at you driving that car kinda makes a guy feel like a well equipped porn star!
The way people look at you driving that car kinda makes a guy feel like a well equipped porn star!
Update for everyone....
I got the heads back, the "plugs" that were in it looked HIDIOUS so i removed them only to find that they are a PAIN IN THE BUTT to replace with even "semi-factory" ones, i believe that goodyear will have brass plugs that will work and look good. I found a matching intake on e-bay $604, carbs $1097 (these are new in the box), and an air cleaner $450. Ecklers had the decal and filter element for the air cleaner so it all starts going back together soon. More to come later :D
Tom
PS. If anyone has a NICE close up pic of the air cleaner on a 69 427 tri-power i would be forever endebted to them to them if you could get a clear pic of the linkage and air cleaner cover, this will help a bunch when i go to put this gimmick together :D
I got the heads back, the "plugs" that were in it looked HIDIOUS so i removed them only to find that they are a PAIN IN THE BUTT to replace with even "semi-factory" ones, i believe that goodyear will have brass plugs that will work and look good. I found a matching intake on e-bay $604, carbs $1097 (these are new in the box), and an air cleaner $450. Ecklers had the decal and filter element for the air cleaner so it all starts going back together soon. More to come later :D
Tom
PS. If anyone has a NICE close up pic of the air cleaner on a 69 427 tri-power i would be forever endebted to them to them if you could get a clear pic of the linkage and air cleaner cover, this will help a bunch when i go to put this gimmick together :D
69' 427/435 4-speed. #matching LR (Tri-power).
|IMG|http://home.tampabay.rr.com/tommyab/images/personal/lrear.jpg|/IMG|
go to www.cranescorvette,com go to tri power page 3 check out the whole site, it's pretty cool
in Forum: C3 Special Edition Vettes
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