Which head gaskets SHOULD I use? Partnumber etc. This will not be a daily driver, nor a trailer queen, nor a drag racer, just a semi performance driving car to look good. (it is in paint now)

350 .060 over
TRW flat top w/4 valve relief
stock deck height (very surfacing but only to flatten)
280H comp cam (both valves- 280 adv duration with .488 lift)
performer rpm heads
-64CC chambers
-170c intake port size
-2.02/1.60
Holley Dual Plane manifold
Holley 650 vac secondaries/750 vac secondaries (not sure yet)

Which head gaskets SHOULD I use? Partnumber etc. This will not be a daily driver, nor a trailer queen, nor a drag racer, just a semi performance driving car to look good. (it is in paint now)

350 .060 over
TRW flat top w/4 valve relief
stock deck height (very surfacing but only to flatten)
280H comp cam (both valves- 280 adv duration with .488 lift)
performer rpm heads
-64CC chambers
-170c intake port size
-2.02/1.60
Holley Dual Plane manifold
Holley 650 vac secondaries/750 vac secondaries (not sure yet)
=
http://www.sdparts.com/product/14096405/0028quotCompositionwGraphiteSmallBlockChevyHeadGas ket.aspx

With a few assumptions this should put you at close to 10.1
It depends on what "only to flatten" means :D

Mike,

When I built the engine back in '97 I surfaced it using a surface grinder, the type that has a donut shaped grinding whel, and only took a few thou. off, only a few passes. Also does Fel-pro make a gasket with that thickness, I was trying to find a part number for it as a buddy Is a manager at Kragen's and gets 25% disount on all parts, I got my heads complete for under $900. The compressed thickness on that gasket is .028 correct?

Mike,

When I built the engine back in '97 I surfaced it using a surface grinder, the type that has a donut shaped grinding whel, and only took a few thou. off, only a few passes. Also does Fel-pro make a gasket with that thickness, I was trying to find a part number for it as a buddy Is a manager at Kragen's and gets 25% disount on all parts, I got my heads complete for under $900. The compressed thickness on that gasket is .028 correct?
=
Yes it is .028 & I was using a deck of 9.020 which is .005 off of nominal

Of course nominal can be all over the map & unless done off the mains I have seen blocks that were anywhere from 9.010 to 9.030+ so it is a good idea to measure things ;)
Do not be surprised to find the block interesting from side to side & end to end either,,,
I have seen them vary by .020+ from the factory, recently did a 400 that was that bad :(

Wow, those are huge differences. I would not be suprised to find out if my block was off by those numers as well. That is one measurement we did not really address in my engine rebuilding class.
So, does fel-pro make a thin gasket like that. All i could locate were like .038 and .041.

Wow, those are huge differences. I would not be suprised to find out if my block was off by those numers as well. That is one measurement we did not really address in my engine rebuilding class.
So, does fel-pro make a thin gasket like that. All i could locate were like .038 and .041.
=
Nope
They do have the 1094 which is a Viton coated .015 steel shim I like assuming the heads & block are pretty smooth & the pistons are down .020 or better in the highest hole.
You do need a decent RA with these gaskets but if the block was done with a stone it is should be pretty smooth.

First; thank you for all the info. So I looked up the part number and sure enough there it was. .015/3.2CC/4.100 bore etc. so my question now is how do I verify the .020 piston to deck clearance to make sure im not asking for problems. Would using the depth guage on a pair of digital calipers settin on the edge of the cylinder touching the top of the piston be fine or how would I measure this?

Also to make sure Im figuring correctly- to find static compression ratio do I use this formula:

3.1415 x radius squared x depth x 16.3871(cubes to CC) then divide that by the CC's of the heads plus the CC's of the gasket?

(3.1415 x 2.03 squared (=4.1209) x 4 x 16.3871) / (64 + 3.2) = 848.5718/67.2 = 12.63:1 :confused:

Sorry to be so pesky on this, I just want to do it once, and not experiment when someone who is a little more knowledgeable can answer my question.

First; thank you for all the info. So I looked up the part number and sure enough there it was. .015/3.2CC/4.100 bore etc. so my question now is how do I verify the .020 piston to deck clearance to make sure im not asking for problems. Would using the depth guage on a pair of digital calipers settin on the edge of the cylinder touching the top of the piston be fine or how would I measure this?

Also to make sure Im figuring correctly- to find static compression ratio do I use this formula:

3.1415 x radius squared x depth x 16.3871(cubes to CC) then divide that by the CC's of the heads plus the CC's of the gasket?

(3.1415 x 2.03 squared (=4.1209) x 4 x 16.3871) / (64 + 3.2) = 848.5718/67.2 = 12.63:1 :confused:

Sorry to be so pesky on this, I just want to do it once, and not experiment when someone who is a little more knowledgeable can answer my question.
=
Yes, with flat tops you can just use a depth gauge in the center of the piston
If you have a dome & need to measure towards the outside edge you need to rock the piston both ways to get an average, add the numbers & divide by 2
You have to be sure you measure in the same spot too,,,
If you get .005 & .030 for instance the piston is down .0175

Try this
CR= cylinder + chamber volume / chamber volume
do not forget the chamber includes the gasket plus the volume of the bore above the piston & valve notches & you need to change everything to cc's
Use 6cc's for the notches, close enough,,
In the case of a dome you need to deduct dome volume from chamber volume.

No one does this anymore including me, I have a killer program that I can input everything including the amount the rings are below the top of the piston but you don't need this, it is "nit pickin" :D

Easy way is to just go here, this one is pretty damn accurate
http://members.uia.net/pkelley2/crc.htm

move to front for my info, no reason to reply