css19

of course,engine shop must check everything
I must pull out engine block
how much damage can make salt water,sea,in block cast ?
and if everything is ok,is this good combination,this heads and 400 block?
I was thinking about port and polish heads,and change block on hyd roller cam and lifters? is it possible whit this block to make hyd.roller?
or better, can I come close 400 hp with this combo,this old,poor flowing heads and 400 ci?

partlowr

I just Googled the CSS 19, what a cool looking little boat. Please post some photos of yours.

css19

What can I expect from these head?
I need 400 healthy horses



is this camshaft good for this combo?
http://www.compperformancegroupstore...ory_Code=HFTXM

css19

https://www.youtube.com/watch?v=sgPZ...gJwT1AozDXVWXR

I can do almost everything , what this guy made, I already have a bigger valves , a little valve shrouding,
there are plenty of meat,porting and other things
well, if I can stay with little budget,why not

css19

still working,I started to disassemble the head and I started porting .I m not sure if I'm going to low budget build or to spend some more money
still read a lot,and learning
at the top of the piston write 0.20,all cylinder is good ,no scratch,bottom end turns without problem,and that is my problem,why touch if i do not need
otherwise the plan is this
top end
afr 190 cc heads
compcams marine xm 276 if I go roller,if I stay no roller xm 278 (not sure if i need new lifters,my is like new,no wear)
roller rockers 1.5 I have
hardened pushrods i have
carburetor I m not sure maybe 750cfm,i have 4bar rochester,but i am not sure what to expect from him
edelbrock rpm performer intake
bottom end
I like to go with some flat top piston +7cc
5.7 or 6 rods,maybe forged
crank oem
or buy some bottom end kit
alpha one is down ,tomorrow start disassemble,must check everything
I measured the stroke of the intake valve, left an imprint on it,and it is 12 mm,0.472 inch of lift,exh 11.5mm .452",so probably both is .452",summit says crane cam .452-452
steam holes on block is closed with something,not rust

css19

I need an answer
cam specification says 0.500 max lift
Is this means that the valve to be raised from the valve seat for 0.500?

css19

still working
the engine is disassembled into parts
crankshaft is oem gm, ok condition, need light polishing, main bearings are .020 "down, and rod bearings is .009" down.clevite p 77 bearings are not in the best condition, especially main, lower, all need replacement
I'm still in the process of measuring all
* Former engine builder strengthen the block with ARP bolts and nuts
stock rods are also strengthened with ARP bolts and nuts
some cheap aluminum piston .020 "reverse dome + 30cc, I measured
cam is C.C 280 AH10, need light polishing, so I do not need a new
One cylinder has a crater in the field of DDC, and here I am in doubt what to do.
all 8 cylinder bore over .030, and buy new flat top piston and 6 "rods, or put a sleeve into the damaged cylinder, keep this piston and rod
My machinist said sleeve is thick .070 ", and I was very afraid of what will happen when charging the same
all cylinders are in very good condition with no significant wear
yet all measure up
go some pictures of damaged cylinder

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[IMG][/IMG]

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airjunky

I would try to replicate the merc 377 build, that boat wont be happy with a cammy engine. Especially if you put 5 people in it . And if you still have the fiberglass "arch" that happens to have a tow hook built in up there .