<VV> Re:engine #'s drivin me crazy

[Dennis & Debbie Pleau]

It looks like the CCs of a 110 head is 48.8 and a 102 head is 46.0 so there 
isn't much difference.  A 80 hp is 51.5 to 53 so it is much closer to a 102 
than I would have expected.

dp

At 09:20 PM 1/3/2006, Frank DuVal wrote:

>|Your engine block is a 62/63 84 hp PG from a Monza 900. The head is a 
>late 110. The heads |shouldn't fit unless there is a spacer around the top 
>of the cylinder. I think you have a mishmash of |parts. Hopefully someone 
>hogged out the interior of the block an put a late crank, late cylinders 
>to |go with the 110 head. This is actually done fairly often so earlies 
>can have a correct block |number,  but actually have 164 cid. If the 
>objective is to put head gaskets in, my guess would be |late gaskets. If 
>you really have 110 heads on a 145 cid engine you have a really low 
>compression |ratio and should look for some early heads.
>
>Nobody commented yet on the last sentence. 110 heads, if 1965 to 1969, do 
>have the larger bore opening and need larger head gaskets and shims to fit 
>1960 to 1964 cylinders. But, the compression ratio will be similar to a 
>102 head. Still higher than a 80 or 95 HP head. You can also use 1965 to 
>1969 cylinders on the early block to fit the late 110 head without shims. 
>The pistons need to be matched to the crankshaft, 145 pistons to a 145 
>crank, and 164 pistons to a 164 crank. Just ask me, my Spyder ran for 
>years with low compression due to 164 pistons on 145 crank!
>
>Comments from those with more knowledge?
>
>Frank DuVal