New heads for a non-vortec HSR
#1
Member
Thread Starter
New heads for a non-vortec HSR
Sorry if this is the wrong spot but I am putting together a 88 L98 for my 86 TA and I am looking at a new set of heads that will work with the intake and bottom end. I haven't decided on a cam but I am not looking to build this into a monster per se.
I found these heads on Summit after searching and seeing the recommendations for afr 195's. They are from blueprint and they seem rather decent for the price.
https://www.summitracing.com/parts/mll-h8002k
As always opinions and personal experience are welcome! The bottom end mods will consist of new bearings, rod bolts and pistons (one fell off a shelf and cracked the skirt. idiot..) I plan on a basic stock style flat top unless someone thinks there is a better option.
Thanks for the help in advance.
Mike
I found these heads on Summit after searching and seeing the recommendations for afr 195's. They are from blueprint and they seem rather decent for the price.
https://www.summitracing.com/parts/mll-h8002k
As always opinions and personal experience are welcome! The bottom end mods will consist of new bearings, rod bolts and pistons (one fell off a shelf and cracked the skirt. idiot..) I plan on a basic stock style flat top unless someone thinks there is a better option.
Thanks for the help in advance.
Mike
#3
Member
Re: New heads for a non-vortec HSR
I have a buddy running those heads work great on his 355 with a Super Ram set up never had a problem with them an he has been running them for over 5 yrs now
#4
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Thread Starter
Re: New heads for a non-vortec HSR
Thanks for the feedback. What would be a good cam/ rocker combo for this? Once again looking mild idle to 5500, I assume I will need a new prom regardless so that isn't as much of a concern.
#5
Supreme Member
iTrader: (20)
Re: New heads for a non-vortec HSR
Oem hyd roller style cam with duration around 218 deg intake and low .500” lift range, lsa in the 112 range will idle near stock like sounding and pull to 5500
Comp has the 08-502-8 which is pretty popular. Very mild cam with good manners. Run with a comp magnum roller tip style 1.6 rocker for a good budget setup
Comp has the 08-502-8 which is pretty popular. Very mild cam with good manners. Run with a comp magnum roller tip style 1.6 rocker for a good budget setup
#6
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Thread Starter
Re: New heads for a non-vortec HSR
what kind of power numbers could I expect with that combo using 30 lb injectors?
#7
Supreme Member
iTrader: (20)
Re: New heads for a non-vortec HSR
lower mid 300’s whp in an auto car give or take. Thats possible. I’m not to familiar with those heads but similar sized stuff with lt4 hotcam type cams have done 340-360 whp in manual cars. So figure 20-25 less in an automatic
Not sure what you are using for trans
If the ports are not good on the heads then it might get to 275-300 whp
Not sure what you are using for trans
If the ports are not good on the heads then it might get to 275-300 whp
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#8
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Thread Starter
Re: New heads for a non-vortec HSR
lower mid 300’s whp in an auto car give or take. Thats possible. I’m not to familiar with those heads but similar sized stuff with lt4 hotcam type cams have done 340-360 whp in manual cars. So figure 20-25 less in an automatic
Not sure what you are using for trans
If the ports are not good on the heads then it might get to 275-300 whp
Not sure what you are using for trans
If the ports are not good on the heads then it might get to 275-300 whp
Right now I can stay stock piston etc on the bottom end but I'm taking a 90k motor and making it all reliable. I envision doing pistons, bearings on the bottom end only because I dropped a piston during removal like a fool. Block is in great shape.
If I can get mid 300's that's good for what it will be. Trying to stay under 2500 for the build so the cam, pistons, heads and hsr are about it. I know I'll have to get a good tune but that's a cost not related to the actual build. Besides I need to budget for when the t5 dies.
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