[cobalt327]

Originally Posted by macrobert68

I like this forum very helpful.Here is a question for all u
hotroders out there
What are the thoughts of the amount of hp and compression from this build?


1974 400 block machine shop to .030 over >406
line bored shop balanced on newest machine
(shop tells me its the newest ballancer on the market )
castcrank
(now i wish i would of went forged)
flat top pistons with two releif cuts
mahle rings
howard cam .555/298/308/110hyd roller
crane roller rockers (gold pro race 1.5)
dart shp 202/180 72cc on stock deck height
comtiec gasket compressed 0.30
weiand tunnel ram with twin 4160 450 cfm carbs
holly hp mech fp 110gph
msd plug and play msd wires msd coil
Super Competition, Full-Length, Steel, Ceramic Coated, Chevy Headers

Don't see that cam here: Chevrolet V8 262-400 (non-OE hydraulic roller) 1957-1996

Static CR is around 10.3, but my concern is if the block hasn't been decked, the quench distance is ~0.055".

Fill in the blanks and a guess could be made.

[macrobert68]

2800 stall in th400 unsure what rear end to use .I was thinking gm 12 bolt 410
What do u think? Mostly street car some track time gotta find out what it will do

[macrobert68]

howard cam number
110355-10
i

[macrobert68]

I did get alot of help with direction from my machine shop teck

[cdminter59]

I have a couple of questions for you. What length connecting rods did you use? The Cometic head gaskets you used is C5249-030 the part number? If not post the part numbers you used. When installing the head gaskets did you use any type of sealer on them. Also did you install washers under the nuts on the head studs?

[macrobert68]

yea i saw the cam requires 11-1 and im around 10.3-1 whats going to happen ?

[F-BIRD'88]

It will work fine for pump gas. For a girlie cam.

[macrobert68]

the rods came with eagle spec esp-13010030 i think stock length 5.7 ? forged 5140 i beam
i dont rember the part number of the gasket .thickness was on my machine shop invoice
as far as the studs yes on the washers that came with them and arp sealant (white tube ) under pressure they leak .today I talked with arp and they tell me remove all the water from the system remove one stud at a time blow out with compressed air squirt brake parts cleaner in the hole blow out again clean the threads and load the threads up with a lot of arp or permatex ptf and retork .
do only one at a time .What a pain in the *** !!!!!either the product works or not i say NO .I will b changing to permatex

[macrobert68]

check out my pics @1979 malibu classic in the works
in the albums