L-88 Starter 1108351 nose

[Tim S.]

I have a 1108351 starter dates 8 H 19, for use on a 69 L-88 engine.
I know it is for use with a n M22 HD 4 speed transmission, and to be utilized with the 1114356 solenoid and the 3963540N, 12.75" total diameter flywheel, and 403 clutch housing. etc. My question is about the nose to properly engage the smaller flywheel.
The nose I have I think is cast aluminum, it is not cast iron for sure. The nose looks similar
to the one on my 1967 327 corvette and has a straight across bolt pattern. The engine is not in a car. The starter bolts up to the block and seems to have the proper angle and length to engage with the flywheel. However, I am told the proper nose for the L-88 on the "351" starter is unique and just for the427 with the small flywheel. Is there any way to know if I have the correct nose for the 351 starter..other than trying it?
Thank You

[Joe L.]

Re: L-88 Starter 1108351 nose

I have a 1108351 starter dates 8 H 19, for use on a 69 L-88 engine.
I know it is for use with a n M22 HD 4 speed transmission, and to be utilized with the 1114356 solenoid and the 3963540N, 12.75" total diameter flywheel, and 403 clutch housing. etc. My question is about the nose to properly engage the smaller flywheel.
The nose I have I think is cast aluminum, it is not cast iron for sure. The nose looks similar
to the one on my 1967 327 corvette and has a straight across bolt pattern. The engine is not in a car. The starter bolts up to the block and seems to have the proper angle and length to engage with the flywheel. However, I am told the proper nose for the L-88 on the "351" starter is unique and just for the427 with the small flywheel. Is there any way to know if I have the correct nose for the 351 starter..other than trying it?
Thank You

Tim-------


You've been told incorrectly. The starter nose for the 1108351 starter is the same configuration as the one used on all 1963-68 Corvette small block starters as well as 1965 L-78.

There were different part numbers used over the years but all are 100% functionally interchangeable. The particular nose used for 1969 L-88 was GM #1968122 but this same nose was used for MANY other applications as well as 63-68 SERVICE. A picture of an NOS example [not for sale] is included below. The nose is aluminum. However, it does not have "straight across bolt pattern". It uses one long (4.65") and one short (1.84") starter mounting bolts.

DSCN0894.jpg

[Tim S.]

Re: L-88 Starter 1108351 nose

Joe

Thank you very helpful as always. That is the one that I have! I did not describe it correctly, I was looking at the boss where the
nose mates to the block , the bolts required as you describe.
Tim

[Joe L.]

Re: L-88 Starter 1108351 nose

Joe

Thank you very helpful as always. That is the one that I have! I did not describe it correctly, I was looking at the boss where the
nose mates to the block , the bolts required as you describe.
Tim

Tim------


On the block side, they're all "straight across"----every one ever made for a block mounted starter.

[Peter M.]

Re: L-88 Starter 1108351 nose

Hi Joe,
All the mid to late 60s Chevys with the 14"/168 tooth flywheel that I have seen use a starter nose with staggered mounting bolts, in other words diagonally spaced. The blocks would have three mounting bolt holes so the straight across option was available.
Kind regards

[Joe L.]

Re: L-88 Starter 1108351 nose

Hi Joe,
All the mid to late 60s Chevys with the 14"/168 tooth flywheel that I have seen use a starter nose with staggered mounting bolts, in other words diagonally spaced. The blocks would have three mounting bolt holes so the straight across option was available.
Kind regards

Peter------


There may be some difference of interpretation here regarding the term "straight across". I was using the term in the context of the relative difference in the "height" of the starter bolt seats, irrespective of the actual bolt pattern. The aluminum starter nose for 12-3/4", 153 tooth flywheels is the only starter nose in which the starter bolt seats are not at the same "height" (or, "straight across" in my parlance).

For the 14", 168 tooth flywheels for block-mounted starters, there were several starter noses. Most were cast iron and used 2 intermediate length starter bolts (3-5/8" length). Some of these noses had 3 mounting holes and some had only 2. In the case of the 2 mounting hole noses, the holes are off-set. In the case of the 3 mounting hole noses, the additional hole is present at the forward end of the nose. In every application I have seen with the 3 hole noses, either only the 2 "off-set" holes were used or all 3 holes were fitted with bolts. However, I suppose it's possible there were some applications which used only the 2 forward holes. No Corvette applications, though.

The 3 bolt hole, cast iron starter noses are pretty rare. I think they were only used during the mid-to-late 60's. By 1969, if not earlier, I think the 2 hole cast iron nose had replaced them for PRODUCTION and all earlier SERVICE for applications originally using the 3 hole noses.

There was also another starter nose used for 14", 168 tooth flywheels, primarily or exclusively for 1970 and later automatic trans applications. This starter nose was aluminum, had only 2 OFF-SET starter bolt holes, and used 2 long (4.65") starter bolts.

[Peter M.]

Re: L-88 Starter 1108351 nose

Joe,
Sorry,
I was thinking of the mounting pattern.