799 heads and cam in 5.3
02-09-2015, 01:01 PM
#1
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799 heads and cam in 5.3 Ok guys so i got a pair of good 799 heads for 150 bucks and i want to get them on my 84 ls swapped corvette currntly everything is stock.
But i have a few questions.
I know i will have to deck this heads probably around .03?? I want my compression ratio to be close to 10.1 but im also worried about ptv clearence i will not be using a huge cam i was looking at comp cams 54-414-11 wich has a small duration of 216/220 and a tiny lift of .525/.532 i wanted to know if this set up would be good. I have a 2500rpm stall installed already.
Any help would be greatly appreciated thanks
But i have a few questions.
I know i will have to deck this heads probably around .03?? I want my compression ratio to be close to 10.1 but im also worried about ptv clearence i will not be using a huge cam i was looking at comp cams 54-414-11 wich has a small duration of 216/220 and a tiny lift of .525/.532 i wanted to know if this set up would be good. I have a 2500rpm stall installed already.
Any help would be greatly appreciated thanks
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02-09-2015, 07:39 PM
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What about a 222/224 566/568 from comp cam would that be good? Its a street car that will see the strip everyonce in a while specialy since they closed the raceway in san antonio
02-09-2015, 08:30 PM
#10
Bolton cars like stalls in the low 3000s and the substantial rotating weight reduction of a quality 9.5" converter makes it a much better idea than some $60 Dacco POS the hack tranny shop down the road sold for $2-300.
You are the only one that said 4000.
You are the only one that said 4000.
02-09-2015, 10:11 PM
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The converter was replaced with what i was able to get its a bnm and i dnt want to go higher than a 2500 that is the reason why i am sticking with a smaller cam. I want my hp and torque lower than most people whos power dosent start until they reach 3000k its just a fun car that drives nice on the street not a full blown race car.
02-09-2015, 10:13 PM
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02-09-2015, 10:33 PM
#13
The converter was replaced with what i was able to get its a bnm and i dnt want to go higher than a 2500 that is the reason why i am sticking with a smaller cam. I want my hp and torque lower than most people whos power dosent start until they reach 3000k its just a fun car that drives nice on the street not a full blown race car.
02-10-2015, 04:50 AM
#15
B&M might have been ok with a th350 but not on 700r4 and newer trannies.
Using a small budget as an excuse to buy junk parts just costs more money, been there, made that mistake myself as most of us have.
Like I said before you aren't ready for this level of modification, now we just know you aren't ready budget or knowledge wise.
Settle down and do it right later, rushing to do it halfassed and cheap costs a lot more in the long run.
Using a small budget as an excuse to buy junk parts just costs more money, been there, made that mistake myself as most of us have.
Like I said before you aren't ready for this level of modification, now we just know you aren't ready budget or knowledge wise.
Settle down and do it right later, rushing to do it halfassed and cheap costs a lot more in the long run.
02-10-2015, 07:14 AM
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Im pretty sure that the 2500 will be able to handle a small cam. And ill admit im not a genious but im not completely stupid i did the swap all by my self and ive built a few 350s but i mostly work on diesel 18wheeler engines. Like i sayed im not going for a race car, just a fun car.
02-10-2015, 01:51 PM
#19
.030" off the heads will give the compression ratio you desire without any intake sealing problems or valve clearance problems with the size cam you are looking to run.
Use a MLS head gasket and LS7 (stock replacement lifters). Stock pushrod length will probably be the correct length with the milled heads, lifters, and cam suggested below.
Instead of the Comp 216/220, look at TrickFlow's 216/220. It offers a little more lift and costs over $100 less. It will work well with a set of their 16918 springs which are a drop in design.
It should make 390-430bhp depending upon intake and exhaust, have just a hint of a lope, and will have excellent manners.
As said before, 2500rpm stall is far too low even for a stock cam. Stay away from the 12" converters: you will want a 3200rpm minimum. That may sound high but a quality converter with that stall speed will drive very well.
BTW - you got a GREAT deal on those heads if there is nothing wrong!! Take that ~$120 saved on the camshaft and put it towards a quality valve job, you won't regret it.
Use a MLS head gasket and LS7 (stock replacement lifters). Stock pushrod length will probably be the correct length with the milled heads, lifters, and cam suggested below.
Instead of the Comp 216/220, look at TrickFlow's 216/220. It offers a little more lift and costs over $100 less. It will work well with a set of their 16918 springs which are a drop in design.
It should make 390-430bhp depending upon intake and exhaust, have just a hint of a lope, and will have excellent manners.
As said before, 2500rpm stall is far too low even for a stock cam. Stay away from the 12" converters: you will want a 3200rpm minimum. That may sound high but a quality converter with that stall speed will drive very well.
BTW - you got a GREAT deal on those heads if there is nothing wrong!! Take that ~$120 saved on the camshaft and put it towards a quality valve job, you won't regret it.
02-10-2015, 02:52 PM
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.030" off the heads will give the compression ratio you desire without any intake sealing problems or valve clearance problems with the size cam you are looking to run.
Use a MLS head gasket and LS7 (stock replacement lifters). Stock pushrod length will probably be the correct length with the milled heads, lifters, and cam suggested below.
Instead of the Comp 216/220, look at TrickFlow's 216/220. It offers a little more lift and costs over $100 less. It will work well with a set of their 16918 springs which are a drop in design.
It should make 390-430bhp depending upon intake and exhaust, have just a hint of a lope, and will have excellent manners.
As said before, 2500rpm stall is far too low even for a stock cam. Stay away from the 12" converters: you will want a 3200rpm minimum. That may sound high but a quality converter with that stall speed will drive very well.
BTW - you got a GREAT deal on those heads if there is nothing wrong!! Take that ~$120 saved on the camshaft and put it towards a quality valve job, you won't regret it.
Use a MLS head gasket and LS7 (stock replacement lifters). Stock pushrod length will probably be the correct length with the milled heads, lifters, and cam suggested below.
Instead of the Comp 216/220, look at TrickFlow's 216/220. It offers a little more lift and costs over $100 less. It will work well with a set of their 16918 springs which are a drop in design.
It should make 390-430bhp depending upon intake and exhaust, have just a hint of a lope, and will have excellent manners.
As said before, 2500rpm stall is far too low even for a stock cam. Stay away from the 12" converters: you will want a 3200rpm minimum. That may sound high but a quality converter with that stall speed will drive very well.
BTW - you got a GREAT deal on those heads if there is nothing wrong!! Take that ~$120 saved on the camshaft and put it towards a quality valve job, you won't regret it.
Ok man thats great info just what i needed.
Thanks