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GPI vs FRH cnc LS3s

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Old Jul 8, 2019 | 09:49 PM
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Default GPI vs FRH cnc LS3s

Looking for a little advice on who to go with for CNC ported LS3 heads. I know gwatney will sell them outright with a $400 core charge. Frankenstein doesn’t offer that option tho, and it’s been tough to find LS3 heads in my area around $500 even.

The combo will be going in a gutted foxbody set up strictly as a drag car.

The engine combo is as follows
LQ9 stock crank
compstar rods
+12cc dome wisecos
super vic ls3 4150
E85 carb

My main question is FRH worth the extra money and hassle to find a set of ls3 to send to them or just go with the gpi outright ls3s.
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Old Jul 8, 2019 | 10:15 PM
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Both will make great power. Cant go wrong either way
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Old Jul 9, 2019 | 09:37 AM
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Originally Posted by Jgant813
Looking for a little advice on who to go with for CNC ported LS3 heads. I know gwatney will sell them outright with a $400 core charge. Frankenstein doesn’t offer that option tho, and it’s been tough to find LS3 heads in my area around $500 even.

The combo will be going in a gutted foxbody set up strictly as a drag car.

The engine combo is as follows
LQ9 stock crank
compstar rods
+12cc dome wisecos
super vic ls3 4150
E85 carb

My main question is FRH worth the extra money and hassle to find a set of ls3 to send to them or just go with the gpi outright ls3s.
FRH is now FED, they port LS3 heads if you supply heads, reason they stopped doing core exchange was due to the poor castings people sent in and they rather not sell a castings that was been out in the yard for years. Right now they are pumping out heads between a week and half to 2 weeks.

Last edited by KCS; Jul 9, 2019 at 10:44 AM. Reason: Non-Sponsor Pricing Removed
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Old Jul 9, 2019 | 10:48 AM
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Non-Sponsor Soliciting Policy

“We only ask that you make no attempt to post any form of pricing or contact information (email, phone, website, address, etc...) with intentions to solicit for business. We ask that they direct all sales through a current vendor, or become a sponsor to do so directly.”e
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Old Jul 10, 2019 | 11:28 AM
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Originally Posted by KCS
Non-Sponsor Soliciting Policy

“We only ask that you make no attempt to post any form of pricing or contact information (email, phone, website, address, etc...) with intentions to solicit for business. We ask that they direct all sales through a current vendor, or become a sponsor to do so directly.”e
My mistake.
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