• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

88 f150 302 compression ratio with shaved e7te


Jrp79

New Member
Joined
Apr 28, 2016
Messages
10
Reaction score
0
Points
0
Vehicle Year
1994
Make / Model
Mazda
Transmission
Manual
Got a 302 from a 88 f150.stock compression ratio was told is 9.0.1
Just wondering how much can be shaved off e7 heads and what the compression ratio would be.
Motor has the stock pistons and cam will be a .480-.512 lift.so dont want no piston to valve clearance issues.
 


Jbrown1238

Jbrown1238

Member
Joined
Sep 3, 2010
Messages
691
Reaction score
6
Points
18
Location
Largo, Fl
Vehicle Year
2003
Make / Model
Ford
Engine Size
306
Transmission
Manual
My credo
None
Jrp79 said:
Got a 302 from a 88 f150.stock compression ratio was told is 9.0.1
Just wondering how much can be shaved off e7 heads and what the compression ratio would be.
Motor has the stock pistons and cam will be a .480-.512 lift.so dont want no piston to valve clearance issues.
Click to expand...
I have a 306 with "stockish" Flat Top Pistons, 1604 compression distance which is OEM. My ported GT40P heads have .004 milled off and I run a Comp cam with 512 lift. The compression ratio should be around 9.15-9.25 I would think with 58 cc. Plenty of room with 1.6 rockers. I checked PTV myself with clay.
 
85_Ranger4x4

85_Ranger4x4

Forum Staff Member
TRS Event Staff
TRS Forum Moderator
Article Contributor
V8 Engine Swap
OTOTM Winner
TRS Banner 2010-2011
TRS 20th Anniversary
VAGABOND
TRS Event Participant
Joined
Aug 7, 2007
Messages
32,312
Reaction score
17,766
Points
113
Location
SW Iowa
Vehicle Year
1985
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Manual
Do have flattops or do you have valve reliefs in the pistons?

With virgin E7 heads and block with a HO cam andstock rockers with factory flattops I am right at the limit I found somewhere online for valve clearance, about .125.

And I used play-doh. :icon_twisted:
 
dangerranger83

dangerranger83

5.0 HO under the hood!!!
Supporting Member
V8 Engine Swap
Solid Axle Swap
Joined
Apr 26, 2009
Messages
7,738
Reaction score
54
Points
0
Location
Lafayette, IN
Vehicle Year
1983
Make / Model
Ford
Engine Size
5.0 HO carbed with an np435 and np208
Transmission
Manual
85_Ranger4x4 said:
Do have flattops or do you have valve reliefs in the pistons?

With virgin E7 heads and block with a HO cam andstock rockers with factory flattops I am right at the limit I found somewhere online for valve clearance, about .125.

And I used play-doh. :icon_twisted:
Click to expand...
I'm the same minus I have e6. I didn't clay but was told by a few I would be fine. At 5k I haven't had any issues, but rarely do I take it to that, best anymore is 3k.
 

Jrp79

New Member
Joined
Apr 28, 2016
Messages
10
Reaction score
0
Points
0
Vehicle Year
1994
Make / Model
Mazda
Transmission
Manual
Would a comp magnum 280h cam be good with stock e7 (not shaved)
 
You must log in or register to reply here.

Sponsored Ad


Sponsored Ad

Staff online

Members online

Total: 567 (members: 13, guests: 554)

Today's birthdays

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Latest posts

Truck of The Month


Shran
April Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

Latest Album Photos

20240409_190831.jpg
20240409_190818.jpg
20240409_180824.jpg
20240409_182648.jpg
20240409_181010.jpg
20240408_175026.jpg
99 Ranger
20200706_161414.jpg
20240207_155117.jpg
20240207_155111.jpg
20240207_154537 - Copy.jpg
20240207_154500 - Copy.jpg

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top