1988 R30 intake manifold - The 1947 - Present Chevrolet & GMC Truck Message Board Network

R30 Casey · 09-25-2023, 09:41 PM

All,
I have a 1988 R30 7.4L TBI. Thinking about installing and Edelbrock performer 454 TBI intake manifold 3764. Just curious if anyone else has tackled this, if so, what issues you had, and if the accessory brackets fit, IE, cruise, etc…..

https://www.edelbrock.com/performer-...hevy-3764.html

**kwmech** · 09-26-2023, 11:58 AM

Big issue I had with this on my longhorn is getting everything to fit behind the throttle body. When I converted to TBI, I used the large cap distributor. so with that being said it gets really congested back there with fuel lines, brackets and the heater hoses. I ended up eliminating the water port surrounding the the throttle bores and plugging them off. I think it is a poor design by Edelbrock by not taking a little more time and thought with the casting.

R30 Casey · 09-26-2023, 10:01 PM

Good info. That is the only drawback on “aftermarket” parts. Us being gearheads and adding things to improve performance and efficiency is what’s it’s all about, and I appreciate your input

**THI** · 10-02-2023, 01:22 PM

I put one of those on a 1990 almost 20 years ago. Another option is the 1991-1995 cast iron intake, it is basically the same design as the Edelbrock, but a wee bit heavier, and usually easier on the wallet if you fine one!

SCOTI · 10-10-2023, 01:51 PM

I have one on my factory '89 TBI'd 461. No issues that I recall other than tweaking the coil bracket.

09-25-2023, 09:41 PM	#1
R30 Casey Registered User Join Date: Dec 2015 Location: Midland Texas Posts: 12	1988 R30 intake manifold All, I have a 1988 R30 7.4L TBI. Thinking about installing and Edelbrock performer 454 TBI intake manifold 3764. Just curious if anyone else has tackled this, if so, what issues you had, and if the accessory brackets fit, IE, cruise, etc….. https://www.edelbrock.com/performer-...hevy-3764.html

09-26-2023, 11:58 AM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,631	Re: 1988 R30 intake manifold Big issue I had with this on my longhorn is getting everything to fit behind the throttle body. When I converted to TBI, I used the large cap distributor. so with that being said it gets really congested back there with fuel lines, brackets and the heater hoses. I ended up eliminating the water port surrounding the the throttle bores and plugging them off. I think it is a poor design by Edelbrock by not taking a little more time and thought with the casting.

09-26-2023, 10:01 PM	#3
R30 Casey Registered User Join Date: Dec 2015 Location: Midland Texas Posts: 12	Re: 1988 R30 intake manifold Good info. That is the only drawback on “aftermarket” parts. Us being gearheads and adding things to improve performance and efficiency is what’s it’s all about, and I appreciate your input

10-02-2023, 01:22 PM	#4
THI Active Member Join Date: Jan 2017 Location: Traverse City, MI Posts: 195	Re: 1988 R30 intake manifold I put one of those on a 1990 almost 20 years ago. Another option is the 1991-1995 cast iron intake, it is basically the same design as the Edelbrock, but a wee bit heavier, and usually easier on the wallet if you fine one!

10-10-2023, 01:51 PM	#5
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,066	Re: 1988 R30 intake manifold I have one on my factory '89 TBI'd 461. No issues that I recall other than tweaking the coil bracket. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*



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